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Finding the Fourth Proportional to 390,750.62, 586,119.52 and 124,507.52

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Solution

The fourth proportional to 390,750.62, 586,119.52 and 124,507.52 is: 186,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,750.62 : 586,119.52 = 124,507.52 : x
  2. Step 2: Convert to fraction form
    390,750.62/586,119.52 = 124,507.52/x
  3. Step 3: Cross multiply
    390,750.62x = 586,119.52 × 124,507.52
  4. Step 4: Simplify right side
    390,750.62x = 72,976,287,858.79
  5. Step 5: Solve for x
    x = 72,976,287,858.79/390,750.62
  6. Step 6: Final answer
    x = 186,759.24

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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.