Home / 409,419.12-614,473.74-172,931.52

Finding the Fourth Proportional to 409,419.12, 614,473.74 and 172,931.52

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Solution

The fourth proportional to 409,419.12, 614,473.74 and 172,931.52 is: 259,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,419.12 : 614,473.74 = 172,931.52 : x
  2. Step 2: Convert to fraction form
    409,419.12/614,473.74 = 172,931.52/x
  3. Step 3: Cross multiply
    409,419.12x = 614,473.74 × 172,931.52
  4. Step 4: Simplify right side
    409,419.12x = 106,261,877,858.29
  5. Step 5: Solve for x
    x = 106,261,877,858.29/409,419.12
  6. Step 6: Final answer
    x = 259,543.03

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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.