Home / 842,561.91-1,162,743.17-479,980.40

Finding the Fourth Proportional to 842,561.91, 1,162,743.17 and 479,980.40

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Solution

The fourth proportional to 842,561.91, 1,162,743.17 and 479,980.40 is: 662,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,561.91 : 1,162,743.17 = 479,980.40 : x
  2. Step 2: Convert to fraction form
    842,561.91/1,162,743.17 = 479,980.40/x
  3. Step 3: Cross multiply
    842,561.91x = 1,162,743.17 × 479,980.40
  4. Step 4: Simplify right side
    842,561.91x = 558,093,923,620.25
  5. Step 5: Solve for x
    x = 558,093,923,620.25/842,561.91
  6. Step 6: Final answer
    x = 662,377.35

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Double scale
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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.