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Finding the Fourth Proportional to 768,244.76, 1,060,178.64 and 428,712.92

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Solution

The fourth proportional to 768,244.76, 1,060,178.64 and 428,712.92 is: 591,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,244.76 : 1,060,178.64 = 428,712.92 : x
  2. Step 2: Convert to fraction form
    768,244.76/1,060,178.64 = 428,712.92/x
  3. Step 3: Cross multiply
    768,244.76x = 1,060,178.64 × 428,712.92
  4. Step 4: Simplify right side
    768,244.76x = 454,512,280,476.03
  5. Step 5: Solve for x
    x = 454,512,280,476.03/768,244.76
  6. Step 6: Final answer
    x = 591,624.32

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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.