Home / 520,619.36-781,003.11-160,820.78

Finding the Fourth Proportional to 520,619.36, 781,003.11 and 160,820.78

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Solution

The fourth proportional to 520,619.36, 781,003.11 and 160,820.78 is: 241,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,619.36 : 781,003.11 = 160,820.78 : x
  2. Step 2: Convert to fraction form
    520,619.36/781,003.11 = 160,820.78/x
  3. Step 3: Cross multiply
    520,619.36x = 781,003.11 × 160,820.78
  4. Step 4: Simplify right side
    520,619.36x = 125,601,529,332.63
  5. Step 5: Solve for x
    x = 125,601,529,332.63/520,619.36
  6. Step 6: Final answer
    x = 241,254.05

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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.