Home / 841,939.62-1,262,027.31-392,289.72

Finding the Fourth Proportional to 841,939.62, 1,262,027.31 and 392,289.72

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Solution

The fourth proportional to 841,939.62, 1,262,027.31 and 392,289.72 is: 588,023.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,939.62 : 1,262,027.31 = 392,289.72 : x
  2. Step 2: Convert to fraction form
    841,939.62/1,262,027.31 = 392,289.72/x
  3. Step 3: Cross multiply
    841,939.62x = 1,262,027.31 × 392,289.72
  4. Step 4: Simplify right side
    841,939.62x = 495,080,340,072.25
  5. Step 5: Solve for x
    x = 495,080,340,072.25/841,939.62
  6. Step 6: Final answer
    x = 588,023.57

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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.