Home / 520,233.06-780,401.56-141,159.80

Finding the Fourth Proportional to 520,233.06, 780,401.56 and 141,159.80

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Solution

The fourth proportional to 520,233.06, 780,401.56 and 141,159.80 is: 211,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,233.06 : 780,401.56 = 141,159.80 : x
  2. Step 2: Convert to fraction form
    520,233.06/780,401.56 = 141,159.80/x
  3. Step 3: Cross multiply
    520,233.06x = 780,401.56 × 141,159.80
  4. Step 4: Simplify right side
    520,233.06x = 110,161,328,129.29
  5. Step 5: Solve for x
    x = 110,161,328,129.29/520,233.06
  6. Step 6: Final answer
    x = 211,753.80

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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.