Home / 520,989.03-781,484.09-166,002.75

Finding the Fourth Proportional to 520,989.03, 781,484.09 and 166,002.75

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Solution

The fourth proportional to 520,989.03, 781,484.09 and 166,002.75 is: 249,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,989.03 : 781,484.09 = 166,002.75 : x
  2. Step 2: Convert to fraction form
    520,989.03/781,484.09 = 166,002.75/x
  3. Step 3: Cross multiply
    520,989.03x = 781,484.09 × 166,002.75
  4. Step 4: Simplify right side
    520,989.03x = 129,728,507,191.23
  5. Step 5: Solve for x
    x = 129,728,507,191.23/520,989.03
  6. Step 6: Final answer
    x = 249,004.30

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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.