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Finding the Fourth Proportional to 500,479.56, 750,719.34 and 126,502.56

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Solution

The fourth proportional to 500,479.56, 750,719.34 and 126,502.56 is: 189,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,479.56 : 750,719.34 = 126,502.56 : x
  2. Step 2: Convert to fraction form
    500,479.56/750,719.34 = 126,502.56/x
  3. Step 3: Cross multiply
    500,479.56x = 750,719.34 × 126,502.56
  4. Step 4: Simplify right side
    500,479.56x = 94,967,918,351.51
  5. Step 5: Solve for x
    x = 94,967,918,351.51/500,479.56
  6. Step 6: Final answer
    x = 189,753.84

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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.