Home / 916,811.10-1,375,216.65-680,615.10

Finding the Fourth Proportional to 916,811.10, 1,375,216.65 and 680,615.10

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Solution

The fourth proportional to 916,811.10, 1,375,216.65 and 680,615.10 is: 1,020,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,811.10 : 1,375,216.65 = 680,615.10 : x
  2. Step 2: Convert to fraction form
    916,811.10/1,375,216.65 = 680,615.10/x
  3. Step 3: Cross multiply
    916,811.10x = 1,375,216.65 × 680,615.10
  4. Step 4: Simplify right side
    916,811.10x = 935,993,217,761.42
  5. Step 5: Solve for x
    x = 935,993,217,761.42/916,811.10
  6. Step 6: Final answer
    x = 1,020,922.65

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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.