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Finding the Fourth Proportional to 519,666.72, 779,522 and 164,672.88

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Solution

The fourth proportional to 519,666.72, 779,522 and 164,672.88 is: 247,016.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,666.72 : 779,522 = 164,672.88 : x
  2. Step 2: Convert to fraction form
    519,666.72/779,522 = 164,672.88/x
  3. Step 3: Cross multiply
    519,666.72x = 779,522 × 164,672.88
  4. Step 4: Simplify right side
    519,666.72x = 128,366,132,763.36
  5. Step 5: Solve for x
    x = 128,366,132,763.36/519,666.72
  6. Step 6: Final answer
    x = 247,016.27

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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.