Home / 409,560.18-614,335.41-129,075

Finding the Fourth Proportional to 409,560.18, 614,335.41 and 129,075

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Solution

The fourth proportional to 409,560.18, 614,335.41 and 129,075 is: 193,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,560.18 : 614,335.41 = 129,075 : x
  2. Step 2: Convert to fraction form
    409,560.18/614,335.41 = 129,075/x
  3. Step 3: Cross multiply
    409,560.18x = 614,335.41 × 129,075
  4. Step 4: Simplify right side
    409,560.18x = 79,295,343,045.75
  5. Step 5: Solve for x
    x = 79,295,343,045.75/409,560.18
  6. Step 6: Final answer
    x = 193,610.97

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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.