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Finding the Fourth Proportional to 508,727.64, 763,107.72 and 255,870.12

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Solution

The fourth proportional to 508,727.64, 763,107.72 and 255,870.12 is: 383,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,727.64 : 763,107.72 = 255,870.12 : x
  2. Step 2: Convert to fraction form
    508,727.64/763,107.72 = 255,870.12/x
  3. Step 3: Cross multiply
    508,727.64x = 763,107.72 × 255,870.12
  4. Step 4: Simplify right side
    508,727.64x = 195,256,463,889.33
  5. Step 5: Solve for x
    x = 195,256,463,889.33/508,727.64
  6. Step 6: Final answer
    x = 383,813.36

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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.