Home / 828,082.29-1,142,678.15-479,162.39

Finding the Fourth Proportional to 828,082.29, 1,142,678.15 and 479,162.39

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Solution

The fourth proportional to 828,082.29, 1,142,678.15 and 479,162.39 is: 661,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,082.29 : 1,142,678.15 = 479,162.39 : x
  2. Step 2: Convert to fraction form
    828,082.29/1,142,678.15 = 479,162.39/x
  3. Step 3: Cross multiply
    828,082.29x = 1,142,678.15 × 479,162.39
  4. Step 4: Simplify right side
    828,082.29x = 547,528,387,641.39
  5. Step 5: Solve for x
    x = 547,528,387,641.39/828,082.29
  6. Step 6: Final answer
    x = 661,200.46

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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.