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Finding the Fourth Proportional to 585,000.60, 877,500.90 and 319,280.10

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Solution

The fourth proportional to 585,000.60, 877,500.90 and 319,280.10 is: 478,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,000.60 : 877,500.90 = 319,280.10 : x
  2. Step 2: Convert to fraction form
    585,000.60/877,500.90 = 319,280.10/x
  3. Step 3: Cross multiply
    585,000.60x = 877,500.90 × 319,280.10
  4. Step 4: Simplify right side
    585,000.60x = 280,168,575,102.09
  5. Step 5: Solve for x
    x = 280,168,575,102.09/585,000.60
  6. Step 6: Final answer
    x = 478,920.15

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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.