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Finding the Fourth Proportional to 571,027.76, 856,275.72 and 255,487.28

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Solution

The fourth proportional to 571,027.76, 856,275.72 and 255,487.28 is: 383,111.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,027.76 : 856,275.72 = 255,487.28 : x
  2. Step 2: Convert to fraction form
    571,027.76/856,275.72 = 255,487.28/x
  3. Step 3: Cross multiply
    571,027.76x = 856,275.72 × 255,487.28
  4. Step 4: Simplify right side
    571,027.76x = 218,767,554,632.84
  5. Step 5: Solve for x
    x = 218,767,554,632.84/571,027.76
  6. Step 6: Final answer
    x = 383,111.94

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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.