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Finding the Fourth Proportional to 498,769, 688,301.22 and 272,415.04

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Solution

The fourth proportional to 498,769, 688,301.22 and 272,415.04 is: 375,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,769 : 688,301.22 = 272,415.04 : x
  2. Step 2: Convert to fraction form
    498,769/688,301.22 = 272,415.04/x
  3. Step 3: Cross multiply
    498,769x = 688,301.22 × 272,415.04
  4. Step 4: Simplify right side
    498,769x = 187,503,604,378.35
  5. Step 5: Solve for x
    x = 187,503,604,378.35/498,769
  6. Step 6: Final answer
    x = 375,932.76

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1.5x scale

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.