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Finding the Fourth Proportional to 704,745.60, 972,549.60 and 382,455.76

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Solution

The fourth proportional to 704,745.60, 972,549.60 and 382,455.76 is: 527,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,745.60 : 972,549.60 = 382,455.76 : x
  2. Step 2: Convert to fraction form
    704,745.60/972,549.60 = 382,455.76/x
  3. Step 3: Cross multiply
    704,745.60x = 972,549.60 × 382,455.76
  4. Step 4: Simplify right side
    704,745.60x = 371,957,196,405.70
  5. Step 5: Solve for x
    x = 371,957,196,405.70/704,745.60
  6. Step 6: Final answer
    x = 527,789.31

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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.