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Finding the Fourth Proportional to 508,729.64, 763,110.72 and 255,872.12

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Solution

The fourth proportional to 508,729.64, 763,110.72 and 255,872.12 is: 383,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,729.64 : 763,110.72 = 255,872.12 : x
  2. Step 2: Convert to fraction form
    508,729.64/763,110.72 = 255,872.12/x
  3. Step 3: Cross multiply
    508,729.64x = 763,110.72 × 255,872.12
  4. Step 4: Simplify right side
    508,729.64x = 195,258,757,721.13
  5. Step 5: Solve for x
    x = 195,258,757,721.13/508,729.64
  6. Step 6: Final answer
    x = 383,816.36

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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.