Home / 743,239.20-1,115,377.20-477,645.60

Finding the Fourth Proportional to 743,239.20, 1,115,377.20 and 477,645.60

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Solution

The fourth proportional to 743,239.20, 1,115,377.20 and 477,645.60 is: 716,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,239.20 : 1,115,377.20 = 477,645.60 : x
  2. Step 2: Convert to fraction form
    743,239.20/1,115,377.20 = 477,645.60/x
  3. Step 3: Cross multiply
    743,239.20x = 1,115,377.20 × 477,645.60
  4. Step 4: Simplify right side
    743,239.20x = 532,755,011,920.32
  5. Step 5: Solve for x
    x = 532,755,011,920.32/743,239.20
  6. Step 6: Final answer
    x = 716,801.55

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Double scale
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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.