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Finding the Fourth Proportional to 768,487.32, 1,060,436.10 and 424,300.92

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Solution

The fourth proportional to 768,487.32, 1,060,436.10 and 424,300.92 is: 585,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,487.32 : 1,060,436.10 = 424,300.92 : x
  2. Step 2: Convert to fraction form
    768,487.32/1,060,436.10 = 424,300.92/x
  3. Step 3: Cross multiply
    768,487.32x = 1,060,436.10 × 424,300.92
  4. Step 4: Simplify right side
    768,487.32x = 449,944,012,831.21
  5. Step 5: Solve for x
    x = 449,944,012,831.21/768,487.32
  6. Step 6: Final answer
    x = 585,493.09

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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.