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Finding the Fourth Proportional to 555,966.08, 835,104.48 and 449,470.40

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Solution

The fourth proportional to 555,966.08, 835,104.48 and 449,470.40 is: 675,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,966.08 : 835,104.48 = 449,470.40 : x
  2. Step 2: Convert to fraction form
    555,966.08/835,104.48 = 449,470.40/x
  3. Step 3: Cross multiply
    555,966.08x = 835,104.48 × 449,470.40
  4. Step 4: Simplify right side
    555,966.08x = 375,354,744,667.39
  5. Step 5: Solve for x
    x = 375,354,744,667.39/555,966.08
  6. Step 6: Final answer
    x = 675,139.65

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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.