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Finding the Fourth Proportional to 704,749.60, 972,555.12 and 382,459.76

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Solution

The fourth proportional to 704,749.60, 972,555.12 and 382,459.76 is: 527,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,749.60 : 972,555.12 = 382,459.76 : x
  2. Step 2: Convert to fraction form
    704,749.60/972,555.12 = 382,459.76/x
  3. Step 3: Cross multiply
    704,749.60x = 972,555.12 × 382,459.76
  4. Step 4: Simplify right side
    704,749.60x = 371,963,197,781.97
  5. Step 5: Solve for x
    x = 371,963,197,781.97/704,749.60
  6. Step 6: Final answer
    x = 527,794.83

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1.5x scale

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.