Home / 826,746.91-1,240,119.91-258,176.74

Finding the Fourth Proportional to 826,746.91, 1,240,119.91 and 258,176.74

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Solution

The fourth proportional to 826,746.91, 1,240,119.91 and 258,176.74 is: 387,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,746.91 : 1,240,119.91 = 258,176.74 : x
  2. Step 2: Convert to fraction form
    826,746.91/1,240,119.91 = 258,176.74/x
  3. Step 3: Cross multiply
    826,746.91x = 1,240,119.91 × 258,176.74
  4. Step 4: Simplify right side
    826,746.91x = 320,170,116,691.87
  5. Step 5: Solve for x
    x = 320,170,116,691.87/826,746.91
  6. Step 6: Final answer
    x = 387,264.97

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Double scale
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1.5x scale

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.