Home / 498,922.16-688,511.40-272,569.28

Finding the Fourth Proportional to 498,922.16, 688,511.40 and 272,569.28

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Solution

The fourth proportional to 498,922.16, 688,511.40 and 272,569.28 is: 376,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,922.16 : 688,511.40 = 272,569.28 : x
  2. Step 2: Convert to fraction form
    498,922.16/688,511.40 = 272,569.28/x
  3. Step 3: Cross multiply
    498,922.16x = 688,511.40 × 272,569.28
  4. Step 4: Simplify right side
    498,922.16x = 187,667,053,127.24
  5. Step 5: Solve for x
    x = 187,667,053,127.24/498,922.16
  6. Step 6: Final answer
    x = 376,144.96

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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.