Home / 498,006.07-687,240.25-283,141.52

Finding the Fourth Proportional to 498,006.07, 687,240.25 and 283,141.52

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Solution

The fourth proportional to 498,006.07, 687,240.25 and 283,141.52 is: 390,730.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,006.07 : 687,240.25 = 283,141.52 : x
  2. Step 2: Convert to fraction form
    498,006.07/687,240.25 = 283,141.52/x
  3. Step 3: Cross multiply
    498,006.07x = 687,240.25 × 283,141.52
  4. Step 4: Simplify right side
    498,006.07x = 194,586,248,990.18
  5. Step 5: Solve for x
    x = 194,586,248,990.18/498,006.07
  6. Step 6: Final answer
    x = 390,730.68

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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.