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Finding the Fourth Proportional to 585,981.60, 879,490.80 and 502,000.80

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Solution

The fourth proportional to 585,981.60, 879,490.80 and 502,000.80 is: 753,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,981.60 : 879,490.80 = 502,000.80 : x
  2. Step 2: Convert to fraction form
    585,981.60/879,490.80 = 502,000.80/x
  3. Step 3: Cross multiply
    585,981.60x = 879,490.80 × 502,000.80
  4. Step 4: Simplify right side
    585,981.60x = 441,505,085,192.64
  5. Step 5: Solve for x
    x = 441,505,085,192.64/585,981.60
  6. Step 6: Final answer
    x = 753,445.30

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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.