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Finding the Fourth Proportional to 519,553.28, 717,103.06 and 304,762.56

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Solution

The fourth proportional to 519,553.28, 717,103.06 and 304,762.56 is: 420,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,553.28 : 717,103.06 = 304,762.56 : x
  2. Step 2: Convert to fraction form
    519,553.28/717,103.06 = 304,762.56/x
  3. Step 3: Cross multiply
    519,553.28x = 717,103.06 × 304,762.56
  4. Step 4: Simplify right side
    519,553.28x = 218,546,164,349.43
  5. Step 5: Solve for x
    x = 218,546,164,349.43/519,553.28
  6. Step 6: Final answer
    x = 420,642.45

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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.