Home / 1,280,339.38-1,766,717.76-707,345.38

Finding the Fourth Proportional to 1,280,339.38, 1,766,717.76 and 707,345.38

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Solution

The fourth proportional to 1,280,339.38, 1,766,717.76 and 707,345.38 is: 976,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,339.38 : 1,766,717.76 = 707,345.38 : x
  2. Step 2: Convert to fraction form
    1,280,339.38/1,766,717.76 = 707,345.38/x
  3. Step 3: Cross multiply
    1,280,339.38x = 1,766,717.76 × 707,345.38
  4. Step 4: Simplify right side
    1,280,339.38x = 1,249,679,645,299.95
  5. Step 5: Solve for x
    x = 1,249,679,645,299.95/1,280,339.38
  6. Step 6: Final answer
    x = 976,053.43

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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.