Home / 687,939.90-949,325.13-382,035.72

Finding the Fourth Proportional to 687,939.90, 949,325.13 and 382,035.72

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Solution

The fourth proportional to 687,939.90, 949,325.13 and 382,035.72 is: 527,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,939.90 : 949,325.13 = 382,035.72 : x
  2. Step 2: Convert to fraction form
    687,939.90/949,325.13 = 382,035.72/x
  3. Step 3: Cross multiply
    687,939.90x = 949,325.13 × 382,035.72
  4. Step 4: Simplify right side
    687,939.90x = 362,676,109,553.64
  5. Step 5: Solve for x
    x = 362,676,109,553.64/687,939.90
  6. Step 6: Final answer
    x = 527,191.56

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1.5x scale

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.