Home / 1,216,310.74-1,678,775.28-707,306.74

Finding the Fourth Proportional to 1,216,310.74, 1,678,775.28 and 707,306.74

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Solution

The fourth proportional to 1,216,310.74, 1,678,775.28 and 707,306.74 is: 976,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,310.74 : 1,678,775.28 = 707,306.74 : x
  2. Step 2: Convert to fraction form
    1,216,310.74/1,678,775.28 = 707,306.74/x
  3. Step 3: Cross multiply
    1,216,310.74x = 1,678,775.28 × 707,306.74
  4. Step 4: Simplify right side
    1,216,310.74x = 1,187,409,070,489.39
  5. Step 5: Solve for x
    x = 1,187,409,070,489.39/1,216,310.74
  6. Step 6: Final answer
    x = 976,238.25

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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.