Home / 855,676.76-1,180,957.47-493,031.12

Finding the Fourth Proportional to 855,676.76, 1,180,957.47 and 493,031.12

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Solution

The fourth proportional to 855,676.76, 1,180,957.47 and 493,031.12 is: 680,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,676.76 : 1,180,957.47 = 493,031.12 : x
  2. Step 2: Convert to fraction form
    855,676.76/1,180,957.47 = 493,031.12/x
  3. Step 3: Cross multiply
    855,676.76x = 1,180,957.47 × 493,031.12
  4. Step 4: Simplify right side
    855,676.76x = 582,248,784,106.47
  5. Step 5: Solve for x
    x = 582,248,784,106.47/855,676.76
  6. Step 6: Final answer
    x = 680,454.13

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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.