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Finding the Fourth Proportional to 520,055.29, 780,112.10 and 146,049.13

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Solution

The fourth proportional to 520,055.29, 780,112.10 and 146,049.13 is: 219,081.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,055.29 : 780,112.10 = 146,049.13 : x
  2. Step 2: Convert to fraction form
    520,055.29/780,112.10 = 146,049.13/x
  3. Step 3: Cross multiply
    520,055.29x = 780,112.10 × 146,049.13
  4. Step 4: Simplify right side
    520,055.29x = 113,934,693,507.47
  5. Step 5: Solve for x
    x = 113,934,693,507.47/520,055.29
  6. Step 6: Final answer
    x = 219,081.89

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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.