Home / 499,118.84-688,784.28-272,764.32

Finding the Fourth Proportional to 499,118.84, 688,784.28 and 272,764.32

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Solution

The fourth proportional to 499,118.84, 688,784.28 and 272,764.32 is: 376,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,118.84 : 688,784.28 = 272,764.32 : x
  2. Step 2: Convert to fraction form
    499,118.84/688,784.28 = 272,764.32/x
  3. Step 3: Cross multiply
    499,118.84x = 688,784.28 × 272,764.32
  4. Step 4: Simplify right side
    499,118.84x = 187,875,775,760.89
  5. Step 5: Solve for x
    x = 187,875,775,760.89/499,118.84
  6. Step 6: Final answer
    x = 376,414.92

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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.