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Finding the Fourth Proportional to 972,335.60, 1,458,318.72 and 411,763.76

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Solution

The fourth proportional to 972,335.60, 1,458,318.72 and 411,763.76 is: 617,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,335.60 : 1,458,318.72 = 411,763.76 : x
  2. Step 2: Convert to fraction form
    972,335.60/1,458,318.72 = 411,763.76/x
  3. Step 3: Cross multiply
    972,335.60x = 1,458,318.72 × 411,763.76
  4. Step 4: Simplify right side
    972,335.60x = 600,482,799,425.59
  5. Step 5: Solve for x
    x = 600,482,799,425.59/972,335.60
  6. Step 6: Final answer
    x = 617,567.43

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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.