Home / 730,815.60-1,008,531-408,538.80

Finding the Fourth Proportional to 730,815.60, 1,008,531 and 408,538.80

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Solution

The fourth proportional to 730,815.60, 1,008,531 and 408,538.80 is: 563,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,815.60 : 1,008,531 = 408,538.80 : x
  2. Step 2: Convert to fraction form
    730,815.60/1,008,531 = 408,538.80/x
  3. Step 3: Cross multiply
    730,815.60x = 1,008,531 × 408,538.80
  4. Step 4: Simplify right side
    730,815.60x = 412,024,044,502.80
  5. Step 5: Solve for x
    x = 412,024,044,502.80/730,815.60
  6. Step 6: Final answer
    x = 563,786.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.