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Finding the Fourth Proportional to 585,007.60, 877,511.40 and 319,287.10

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Solution

The fourth proportional to 585,007.60, 877,511.40 and 319,287.10 is: 478,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,007.60 : 877,511.40 = 319,287.10 : x
  2. Step 2: Convert to fraction form
    585,007.60/877,511.40 = 319,287.10/x
  3. Step 3: Cross multiply
    585,007.60x = 877,511.40 × 319,287.10
  4. Step 4: Simplify right side
    585,007.60x = 280,178,070,122.94
  5. Step 5: Solve for x
    x = 280,178,070,122.94/585,007.60
  6. Step 6: Final answer
    x = 478,930.65

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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.