Home / 448,428.71-672,645.49-132,888.35

Finding the Fourth Proportional to 448,428.71, 672,645.49 and 132,888.35

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Solution

The fourth proportional to 448,428.71, 672,645.49 and 132,888.35 is: 199,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,428.71 : 672,645.49 = 132,888.35 : x
  2. Step 2: Convert to fraction form
    448,428.71/672,645.49 = 132,888.35/x
  3. Step 3: Cross multiply
    448,428.71x = 672,645.49 × 132,888.35
  4. Step 4: Simplify right side
    448,428.71x = 89,386,747,240.55
  5. Step 5: Solve for x
    x = 89,386,747,240.55/448,428.71
  6. Step 6: Final answer
    x = 199,333.24

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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.