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Finding the Fourth Proportional to 664,281.32, 916,699.62 and 362,470.12

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Solution

The fourth proportional to 664,281.32, 916,699.62 and 362,470.12 is: 500,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,281.32 : 916,699.62 = 362,470.12 : x
  2. Step 2: Convert to fraction form
    664,281.32/916,699.62 = 362,470.12/x
  3. Step 3: Cross multiply
    664,281.32x = 916,699.62 × 362,470.12
  4. Step 4: Simplify right side
    664,281.32x = 332,276,221,265.35
  5. Step 5: Solve for x
    x = 332,276,221,265.35/664,281.32
  6. Step 6: Final answer
    x = 500,204.07

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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.