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Finding the Fourth Proportional to 486,004.40, 729,006.60 and 447,622.55

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Solution

The fourth proportional to 486,004.40, 729,006.60 and 447,622.55 is: 671,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,004.40 : 729,006.60 = 447,622.55 : x
  2. Step 2: Convert to fraction form
    486,004.40/729,006.60 = 447,622.55/x
  3. Step 3: Cross multiply
    486,004.40x = 729,006.60 × 447,622.55
  4. Step 4: Simplify right side
    486,004.40x = 326,319,793,258.83
  5. Step 5: Solve for x
    x = 326,319,793,258.83/486,004.40
  6. Step 6: Final answer
    x = 671,433.83

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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.