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Finding the Fourth Proportional to 768,082.10, 1,152,123.15 and 577,310.90

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Solution

The fourth proportional to 768,082.10, 1,152,123.15 and 577,310.90 is: 865,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,082.10 : 1,152,123.15 = 577,310.90 : x
  2. Step 2: Convert to fraction form
    768,082.10/1,152,123.15 = 577,310.90/x
  3. Step 3: Cross multiply
    768,082.10x = 1,152,123.15 × 577,310.90
  4. Step 4: Simplify right side
    768,082.10x = 665,133,252,637.34
  5. Step 5: Solve for x
    x = 665,133,252,637.34/768,082.10
  6. Step 6: Final answer
    x = 865,966.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.