Home / 748,400.90-1,122,601.35-369,503.15

Finding the Fourth Proportional to 748,400.90, 1,122,601.35 and 369,503.15

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Solution

The fourth proportional to 748,400.90, 1,122,601.35 and 369,503.15 is: 554,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,400.90 : 1,122,601.35 = 369,503.15 : x
  2. Step 2: Convert to fraction form
    748,400.90/1,122,601.35 = 369,503.15/x
  3. Step 3: Cross multiply
    748,400.90x = 1,122,601.35 × 369,503.15
  4. Step 4: Simplify right side
    748,400.90x = 414,804,735,019.25
  5. Step 5: Solve for x
    x = 414,804,735,019.25/748,400.90
  6. Step 6: Final answer
    x = 554,254.73

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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.