Home / 1,198,441.92-1,653,128.76-790,398.72

Finding the Fourth Proportional to 1,198,441.92, 1,653,128.76 and 790,398.72

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Solution

The fourth proportional to 1,198,441.92, 1,653,128.76 and 790,398.72 is: 1,090,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,441.92 : 1,653,128.76 = 790,398.72 : x
  2. Step 2: Convert to fraction form
    1,198,441.92/1,653,128.76 = 790,398.72/x
  3. Step 3: Cross multiply
    1,198,441.92x = 1,653,128.76 × 790,398.72
  4. Step 4: Simplify right side
    1,198,441.92x = 1,306,630,855,899.19
  5. Step 5: Solve for x
    x = 1,306,630,855,899.19/1,198,441.92
  6. Step 6: Final answer
    x = 1,090,274.66

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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.