Home / 687,967.59-949,363.27-382,063.39

Finding the Fourth Proportional to 687,967.59, 949,363.27 and 382,063.39

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Solution

The fourth proportional to 687,967.59, 949,363.27 and 382,063.39 is: 527,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,967.59 : 949,363.27 = 382,063.39 : x
  2. Step 2: Convert to fraction form
    687,967.59/949,363.27 = 382,063.39/x
  3. Step 3: Cross multiply
    687,967.59x = 949,363.27 × 382,063.39
  4. Step 4: Simplify right side
    687,967.59x = 362,716,952,599.01
  5. Step 5: Solve for x
    x = 362,716,952,599.01/687,967.59
  6. Step 6: Final answer
    x = 527,229.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.