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Finding the Fourth Proportional to 475,250.40, 713,007.72 and 386,283.60

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Solution

The fourth proportional to 475,250.40, 713,007.72 and 386,283.60 is: 579,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,250.40 : 713,007.72 = 386,283.60 : x
  2. Step 2: Convert to fraction form
    475,250.40/713,007.72 = 386,283.60/x
  3. Step 3: Cross multiply
    475,250.40x = 713,007.72 × 386,283.60
  4. Step 4: Simplify right side
    475,250.40x = 275,423,188,909.39
  5. Step 5: Solve for x
    x = 275,423,188,909.39/475,250.40
  6. Step 6: Final answer
    x = 579,532.79

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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.