Home / 499,114.56-688,787.36-272,774.72

Finding the Fourth Proportional to 499,114.56, 688,787.36 and 272,774.72

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Solution

The fourth proportional to 499,114.56, 688,787.36 and 272,774.72 is: 376,434.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,114.56 : 688,787.36 = 272,774.72 : x
  2. Step 2: Convert to fraction form
    499,114.56/688,787.36 = 272,774.72/x
  3. Step 3: Cross multiply
    499,114.56x = 688,787.36 × 272,774.72
  4. Step 4: Simplify right side
    499,114.56x = 187,883,779,263.54
  5. Step 5: Solve for x
    x = 187,883,779,263.54/499,114.56
  6. Step 6: Final answer
    x = 376,434.18

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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.