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Finding the Fourth Proportional to 695,708.76, 960,061.08 and 389,797.92

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Solution

The fourth proportional to 695,708.76, 960,061.08 and 389,797.92 is: 537,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,708.76 : 960,061.08 = 389,797.92 : x
  2. Step 2: Convert to fraction form
    695,708.76/960,061.08 = 389,797.92/x
  3. Step 3: Cross multiply
    695,708.76x = 960,061.08 × 389,797.92
  4. Step 4: Simplify right side
    695,708.76x = 374,229,812,056.95
  5. Step 5: Solve for x
    x = 374,229,812,056.95/695,708.76
  6. Step 6: Final answer
    x = 537,911.60

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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.