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Finding the Fourth Proportional to 659,730.16, 988,807.80 and 360,286

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Solution

The fourth proportional to 659,730.16, 988,807.80 and 360,286 is: 539,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,730.16 : 988,807.80 = 360,286 : x
  2. Step 2: Convert to fraction form
    659,730.16/988,807.80 = 360,286/x
  3. Step 3: Cross multiply
    659,730.16x = 988,807.80 × 360,286
  4. Step 4: Simplify right side
    659,730.16x = 356,253,607,030.80
  5. Step 5: Solve for x
    x = 356,253,607,030.80/659,730.16
  6. Step 6: Final answer
    x = 539,998.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.