Home / 1,311,677.75-1,810,244.40-767,780.57

Finding the Fourth Proportional to 1,311,677.75, 1,810,244.40 and 767,780.57

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Solution

The fourth proportional to 1,311,677.75, 1,810,244.40 and 767,780.57 is: 1,059,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,677.75 : 1,810,244.40 = 767,780.57 : x
  2. Step 2: Convert to fraction form
    1,311,677.75/1,810,244.40 = 767,780.57/x
  3. Step 3: Cross multiply
    1,311,677.75x = 1,810,244.40 × 767,780.57
  4. Step 4: Simplify right side
    1,311,677.75x = 1,389,870,478,917.74
  5. Step 5: Solve for x
    x = 1,389,870,478,917.74/1,311,677.75
  6. Step 6: Final answer
    x = 1,059,612.76

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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.