Home / 1,368,679.20-1,888,849.10-824,987.76

Finding the Fourth Proportional to 1,368,679.20, 1,888,849.10 and 824,987.76

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Solution

The fourth proportional to 1,368,679.20, 1,888,849.10 and 824,987.76 is: 1,138,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,679.20 : 1,888,849.10 = 824,987.76 : x
  2. Step 2: Convert to fraction form
    1,368,679.20/1,888,849.10 = 824,987.76/x
  3. Step 3: Cross multiply
    1,368,679.20x = 1,888,849.10 × 824,987.76
  4. Step 4: Simplify right side
    1,368,679.20x = 1,558,277,387,987.02
  5. Step 5: Solve for x
    x = 1,558,277,387,987.02/1,368,679.20
  6. Step 6: Final answer
    x = 1,138,526.39

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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.