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Finding the Fourth Proportional to 693,462.71, 956,982.07 and 387,544.20

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Solution

The fourth proportional to 693,462.71, 956,982.07 and 387,544.20 is: 534,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,462.71 : 956,982.07 = 387,544.20 : x
  2. Step 2: Convert to fraction form
    693,462.71/956,982.07 = 387,544.20/x
  3. Step 3: Cross multiply
    693,462.71x = 956,982.07 × 387,544.20
  4. Step 4: Simplify right side
    693,462.71x = 370,872,852,594.17
  5. Step 5: Solve for x
    x = 370,872,852,594.17/693,462.71
  6. Step 6: Final answer
    x = 534,812.97

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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.