Home / 498,611.68-688,084.08-272,257.36

Finding the Fourth Proportional to 498,611.68, 688,084.08 and 272,257.36

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Solution

The fourth proportional to 498,611.68, 688,084.08 and 272,257.36 is: 375,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,611.68 : 688,084.08 = 272,257.36 : x
  2. Step 2: Convert to fraction form
    498,611.68/688,084.08 = 272,257.36/x
  3. Step 3: Cross multiply
    498,611.68x = 688,084.08 × 272,257.36
  4. Step 4: Simplify right side
    498,611.68x = 187,335,955,078.83
  5. Step 5: Solve for x
    x = 187,335,955,078.83/498,611.68
  6. Step 6: Final answer
    x = 375,715.14

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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.