Home / 1,443,172.84-1,990,262.82-1,239,159.88

Finding the Fourth Proportional to 1,443,172.84, 1,990,262.82 and 1,239,159.88

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Solution

The fourth proportional to 1,443,172.84, 1,990,262.82 and 1,239,159.88 is: 1,708,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,172.84 : 1,990,262.82 = 1,239,159.88 : x
  2. Step 2: Convert to fraction form
    1,443,172.84/1,990,262.82 = 1,239,159.88/x
  3. Step 3: Cross multiply
    1,443,172.84x = 1,990,262.82 × 1,239,159.88
  4. Step 4: Simplify right side
    1,443,172.84x = 2,466,253,837,199.66
  5. Step 5: Solve for x
    x = 2,466,253,837,199.66/1,443,172.84
  6. Step 6: Final answer
    x = 1,708,910.93

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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.