Home / 1,086,543.40-1,629,815.10-287,948.20

Finding the Fourth Proportional to 1,086,543.40, 1,629,815.10 and 287,948.20

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Solution

The fourth proportional to 1,086,543.40, 1,629,815.10 and 287,948.20 is: 431,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,543.40 : 1,629,815.10 = 287,948.20 : x
  2. Step 2: Convert to fraction form
    1,086,543.40/1,629,815.10 = 287,948.20/x
  3. Step 3: Cross multiply
    1,086,543.40x = 1,629,815.10 × 287,948.20
  4. Step 4: Simplify right side
    1,086,543.40x = 469,302,324,377.82
  5. Step 5: Solve for x
    x = 469,302,324,377.82/1,086,543.40
  6. Step 6: Final answer
    x = 431,922.30

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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.