Home / 451,865.79-676,730.03-392,378.18

Finding the Fourth Proportional to 451,865.79, 676,730.03 and 392,378.18

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Solution

The fourth proportional to 451,865.79, 676,730.03 and 392,378.18 is: 587,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,865.79 : 676,730.03 = 392,378.18 : x
  2. Step 2: Convert to fraction form
    451,865.79/676,730.03 = 392,378.18/x
  3. Step 3: Cross multiply
    451,865.79x = 676,730.03 × 392,378.18
  4. Step 4: Simplify right side
    451,865.79x = 265,534,092,177.20
  5. Step 5: Solve for x
    x = 265,534,092,177.20/451,865.79
  6. Step 6: Final answer
    x = 587,639.29

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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.