Home / 743,440.20-1,115,160.30-705,058.35

Finding the Fourth Proportional to 743,440.20, 1,115,160.30 and 705,058.35

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Solution

The fourth proportional to 743,440.20, 1,115,160.30 and 705,058.35 is: 1,057,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,440.20 : 1,115,160.30 = 705,058.35 : x
  2. Step 2: Convert to fraction form
    743,440.20/1,115,160.30 = 705,058.35/x
  3. Step 3: Cross multiply
    743,440.20x = 1,115,160.30 × 705,058.35
  4. Step 4: Simplify right side
    743,440.20x = 786,253,081,103.51
  5. Step 5: Solve for x
    x = 786,253,081,103.51/743,440.20
  6. Step 6: Final answer
    x = 1,057,587.53

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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.