Home / 499,011.04-688,627.20-272,651.68

Finding the Fourth Proportional to 499,011.04, 688,627.20 and 272,651.68

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Solution

The fourth proportional to 499,011.04, 688,627.20 and 272,651.68 is: 376,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,011.04 : 688,627.20 = 272,651.68 : x
  2. Step 2: Convert to fraction form
    499,011.04/688,627.20 = 272,651.68/x
  3. Step 3: Cross multiply
    499,011.04x = 688,627.20 × 272,651.68
  4. Step 4: Simplify right side
    499,011.04x = 187,755,362,973.70
  5. Step 5: Solve for x
    x = 187,755,362,973.70/499,011.04
  6. Step 6: Final answer
    x = 376,254.93

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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.