Home / 1,207,008.42-1,808,121.45-826,995.30

Finding the Fourth Proportional to 1,207,008.42, 1,808,121.45 and 826,995.30

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Solution

The fourth proportional to 1,207,008.42, 1,808,121.45 and 826,995.30 is: 1,238,854.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,008.42 : 1,808,121.45 = 826,995.30 : x
  2. Step 2: Convert to fraction form
    1,207,008.42/1,808,121.45 = 826,995.30/x
  3. Step 3: Cross multiply
    1,207,008.42x = 1,808,121.45 × 826,995.30
  4. Step 4: Simplify right side
    1,207,008.42x = 1,495,307,940,979.19
  5. Step 5: Solve for x
    x = 1,495,307,940,979.19/1,207,008.42
  6. Step 6: Final answer
    x = 1,238,854.61

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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.