Home / 1,345,462.10-2,015,909.35-811,861.90

Finding the Fourth Proportional to 1,345,462.10, 2,015,909.35 and 811,861.90

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Solution

The fourth proportional to 1,345,462.10, 2,015,909.35 and 811,861.90 is: 1,216,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,462.10 : 2,015,909.35 = 811,861.90 : x
  2. Step 2: Convert to fraction form
    1,345,462.10/2,015,909.35 = 811,861.90/x
  3. Step 3: Cross multiply
    1,345,462.10x = 2,015,909.35 × 811,861.90
  4. Step 4: Simplify right side
    1,345,462.10x = 1,636,639,995,118.77
  5. Step 5: Solve for x
    x = 1,636,639,995,118.77/1,345,462.10
  6. Step 6: Final answer
    x = 1,216,414.79

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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.