Home / 687,166.52-948,334.68-396,790.36

Finding the Fourth Proportional to 687,166.52, 948,334.68 and 396,790.36

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Solution

The fourth proportional to 687,166.52, 948,334.68 and 396,790.36 is: 547,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,166.52 : 948,334.68 = 396,790.36 : x
  2. Step 2: Convert to fraction form
    687,166.52/948,334.68 = 396,790.36/x
  3. Step 3: Cross multiply
    687,166.52x = 948,334.68 × 396,790.36
  4. Step 4: Simplify right side
    687,166.52x = 376,290,059,077.69
  5. Step 5: Solve for x
    x = 376,290,059,077.69/687,166.52
  6. Step 6: Final answer
    x = 547,596.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.