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Finding the Fourth Proportional to 499,295.08, 688,858.98 and 284,283.04

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Solution

The fourth proportional to 499,295.08, 688,858.98 and 284,283.04 is: 392,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,295.08 : 688,858.98 = 284,283.04 : x
  2. Step 2: Convert to fraction form
    499,295.08/688,858.98 = 284,283.04/x
  3. Step 3: Cross multiply
    499,295.08x = 688,858.98 × 284,283.04
  4. Step 4: Simplify right side
    499,295.08x = 195,830,924,965.70
  5. Step 5: Solve for x
    x = 195,830,924,965.70/499,295.08
  6. Step 6: Final answer
    x = 392,214.81

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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.