Home / 399,268.63-598,931.70-125,691.40

Finding the Fourth Proportional to 399,268.63, 598,931.70 and 125,691.40

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Solution

The fourth proportional to 399,268.63, 598,931.70 and 125,691.40 is: 188,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,268.63 : 598,931.70 = 125,691.40 : x
  2. Step 2: Convert to fraction form
    399,268.63/598,931.70 = 125,691.40/x
  3. Step 3: Cross multiply
    399,268.63x = 598,931.70 × 125,691.40
  4. Step 4: Simplify right side
    399,268.63x = 75,280,563,877.38
  5. Step 5: Solve for x
    x = 75,280,563,877.38/399,268.63
  6. Step 6: Final answer
    x = 188,546.15

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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.