Home / 835,128.28-1,252,691.81-479,915.74

Finding the Fourth Proportional to 835,128.28, 1,252,691.81 and 479,915.74

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Solution

The fourth proportional to 835,128.28, 1,252,691.81 and 479,915.74 is: 719,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,128.28 : 1,252,691.81 = 479,915.74 : x
  2. Step 2: Convert to fraction form
    835,128.28/1,252,691.81 = 479,915.74/x
  3. Step 3: Cross multiply
    835,128.28x = 1,252,691.81 × 479,915.74
  4. Step 4: Simplify right side
    835,128.28x = 601,186,516,988.09
  5. Step 5: Solve for x
    x = 601,186,516,988.09/835,128.28
  6. Step 6: Final answer
    x = 719,873.26

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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.