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Finding the Fourth Proportional to 803,469.60, 1,203,713.28 and 575,294.40

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Solution

The fourth proportional to 803,469.60, 1,203,713.28 and 575,294.40 is: 861,873.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,469.60 : 1,203,713.28 = 575,294.40 : x
  2. Step 2: Convert to fraction form
    803,469.60/1,203,713.28 = 575,294.40/x
  3. Step 3: Cross multiply
    803,469.60x = 1,203,713.28 × 575,294.40
  4. Step 4: Simplify right side
    803,469.60x = 692,489,509,189.63
  5. Step 5: Solve for x
    x = 692,489,509,189.63/803,469.60
  6. Step 6: Final answer
    x = 861,873.94

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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.