Home / 740,145.60-1,108,250.10-472,456.80

Finding the Fourth Proportional to 740,145.60, 1,108,250.10 and 472,456.80

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Solution

The fourth proportional to 740,145.60, 1,108,250.10 and 472,456.80 is: 707,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,145.60 : 1,108,250.10 = 472,456.80 : x
  2. Step 2: Convert to fraction form
    740,145.60/1,108,250.10 = 472,456.80/x
  3. Step 3: Cross multiply
    740,145.60x = 1,108,250.10 × 472,456.80
  4. Step 4: Simplify right side
    740,145.60x = 523,600,295,845.68
  5. Step 5: Solve for x
    x = 523,600,295,845.68/740,145.60
  6. Step 6: Final answer
    x = 707,428.78

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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.