Home / 498,651.04-688,152.54-272,311.12

Finding the Fourth Proportional to 498,651.04, 688,152.54 and 272,311.12

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Solution

The fourth proportional to 498,651.04, 688,152.54 and 272,311.12 is: 375,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,651.04 : 688,152.54 = 272,311.12 : x
  2. Step 2: Convert to fraction form
    498,651.04/688,152.54 = 272,311.12/x
  3. Step 3: Cross multiply
    498,651.04x = 688,152.54 × 272,311.12
  4. Step 4: Simplify right side
    498,651.04x = 187,391,588,898.25
  5. Step 5: Solve for x
    x = 187,391,588,898.25/498,651.04
  6. Step 6: Final answer
    x = 375,797.05

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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.