Home / 498,927.60-688,505.40-272,573.10

Finding the Fourth Proportional to 498,927.60, 688,505.40 and 272,573.10

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Solution

The fourth proportional to 498,927.60, 688,505.40 and 272,573.10 is: 376,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,927.60 : 688,505.40 = 272,573.10 : x
  2. Step 2: Convert to fraction form
    498,927.60/688,505.40 = 272,573.10/x
  3. Step 3: Cross multiply
    498,927.60x = 688,505.40 × 272,573.10
  4. Step 4: Simplify right side
    498,927.60x = 187,668,051,244.74
  5. Step 5: Solve for x
    x = 187,668,051,244.74/498,927.60
  6. Step 6: Final answer
    x = 376,142.85

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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.