Home / 1,402,143.88-2,102,375.22-643,034.56

Finding the Fourth Proportional to 1,402,143.88, 2,102,375.22 and 643,034.56

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Solution

The fourth proportional to 1,402,143.88, 2,102,375.22 and 643,034.56 is: 964,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,143.88 : 2,102,375.22 = 643,034.56 : x
  2. Step 2: Convert to fraction form
    1,402,143.88/2,102,375.22 = 643,034.56/x
  3. Step 3: Cross multiply
    1,402,143.88x = 2,102,375.22 × 643,034.56
  4. Step 4: Simplify right side
    1,402,143.88x = 1,351,899,924,547.60
  5. Step 5: Solve for x
    x = 1,351,899,924,547.60/1,402,143.88
  6. Step 6: Final answer
    x = 964,166.33

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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.