Home / 725,618.98-1,088,428.66-213,284.20

Finding the Fourth Proportional to 725,618.98, 1,088,428.66 and 213,284.20

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Solution

The fourth proportional to 725,618.98, 1,088,428.66 and 213,284.20 is: 319,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,618.98 : 1,088,428.66 = 213,284.20 : x
  2. Step 2: Convert to fraction form
    725,618.98/1,088,428.66 = 213,284.20/x
  3. Step 3: Cross multiply
    725,618.98x = 1,088,428.66 × 213,284.20
  4. Step 4: Simplify right side
    725,618.98x = 232,144,629,496.61
  5. Step 5: Solve for x
    x = 232,144,629,496.61/725,618.98
  6. Step 6: Final answer
    x = 319,926.35

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1.5x scale

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.