Home / 1,218,537.61-1,681,634.45-674,673.38

Finding the Fourth Proportional to 1,218,537.61, 1,681,634.45 and 674,673.38

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Solution

The fourth proportional to 1,218,537.61, 1,681,634.45 and 674,673.38 is: 931,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,537.61 : 1,681,634.45 = 674,673.38 : x
  2. Step 2: Convert to fraction form
    1,218,537.61/1,681,634.45 = 674,673.38/x
  3. Step 3: Cross multiply
    1,218,537.61x = 1,681,634.45 × 674,673.38
  4. Step 4: Simplify right side
    1,218,537.61x = 1,134,553,997,890.58
  5. Step 5: Solve for x
    x = 1,134,553,997,890.58/1,218,537.61
  6. Step 6: Final answer
    x = 931,078.36

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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.