Home / 824,128.41-1,236,614.52-392,334.52

Finding the Fourth Proportional to 824,128.41, 1,236,614.52 and 392,334.52

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Solution

The fourth proportional to 824,128.41, 1,236,614.52 and 392,334.52 is: 588,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,128.41 : 1,236,614.52 = 392,334.52 : x
  2. Step 2: Convert to fraction form
    824,128.41/1,236,614.52 = 392,334.52/x
  3. Step 3: Cross multiply
    824,128.41x = 1,236,614.52 × 392,334.52
  4. Step 4: Simplify right side
    824,128.41x = 485,166,564,129.23
  5. Step 5: Solve for x
    x = 485,166,564,129.23/824,128.41
  6. Step 6: Final answer
    x = 588,702.63

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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.