Home / 498,999.06-688,625.28-284,139.98

Finding the Fourth Proportional to 498,999.06, 688,625.28 and 284,139.98

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Solution

The fourth proportional to 498,999.06, 688,625.28 and 284,139.98 is: 392,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,999.06 : 688,625.28 = 284,139.98 : x
  2. Step 2: Convert to fraction form
    498,999.06/688,625.28 = 284,139.98/x
  3. Step 3: Cross multiply
    498,999.06x = 688,625.28 × 284,139.98
  4. Step 4: Simplify right side
    498,999.06x = 195,665,968,422.87
  5. Step 5: Solve for x
    x = 195,665,968,422.87/498,999.06
  6. Step 6: Final answer
    x = 392,116.91

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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.