Home / 1,306,998.90-1,960,498.35-859,101.30

Finding the Fourth Proportional to 1,306,998.90, 1,960,498.35 and 859,101.30

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Solution

The fourth proportional to 1,306,998.90, 1,960,498.35 and 859,101.30 is: 1,288,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,998.90 : 1,960,498.35 = 859,101.30 : x
  2. Step 2: Convert to fraction form
    1,306,998.90/1,960,498.35 = 859,101.30/x
  3. Step 3: Cross multiply
    1,306,998.90x = 1,960,498.35 × 859,101.30
  4. Step 4: Simplify right side
    1,306,998.90x = 1,684,266,681,132.86
  5. Step 5: Solve for x
    x = 1,684,266,681,132.86/1,306,998.90
  6. Step 6: Final answer
    x = 1,288,651.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.