Home / 688,246.47-949,932.05-382,428

Finding the Fourth Proportional to 688,246.47, 949,932.05 and 382,428

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Solution

The fourth proportional to 688,246.47, 949,932.05 and 382,428 is: 527,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,246.47 : 949,932.05 = 382,428 : x
  2. Step 2: Convert to fraction form
    688,246.47/949,932.05 = 382,428/x
  3. Step 3: Cross multiply
    688,246.47x = 949,932.05 × 382,428
  4. Step 4: Simplify right side
    688,246.47x = 363,280,612,105.26
  5. Step 5: Solve for x
    x = 363,280,612,105.26/688,246.47
  6. Step 6: Final answer
    x = 527,835.05

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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.