Home / 705,904.90-1,058,857.35-374,128.90

Finding the Fourth Proportional to 705,904.90, 1,058,857.35 and 374,128.90

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Solution

The fourth proportional to 705,904.90, 1,058,857.35 and 374,128.90 is: 561,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,904.90 : 1,058,857.35 = 374,128.90 : x
  2. Step 2: Convert to fraction form
    705,904.90/1,058,857.35 = 374,128.90/x
  3. Step 3: Cross multiply
    705,904.90x = 1,058,857.35 × 374,128.90
  4. Step 4: Simplify right side
    705,904.90x = 396,149,135,612.42
  5. Step 5: Solve for x
    x = 396,149,135,612.42/705,904.90
  6. Step 6: Final answer
    x = 561,193.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.