Home / 487,927.20-731,890.80-239,095.20

Finding the Fourth Proportional to 487,927.20, 731,890.80 and 239,095.20

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Solution

The fourth proportional to 487,927.20, 731,890.80 and 239,095.20 is: 358,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,927.20 : 731,890.80 = 239,095.20 : x
  2. Step 2: Convert to fraction form
    487,927.20/731,890.80 = 239,095.20/x
  3. Step 3: Cross multiply
    487,927.20x = 731,890.80 × 239,095.20
  4. Step 4: Simplify right side
    487,927.20x = 174,991,577,204.16
  5. Step 5: Solve for x
    x = 174,991,577,204.16/487,927.20
  6. Step 6: Final answer
    x = 358,642.80

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Similar ratio
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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.