Home / 838,747.20-1,252,039.74-776,308.44

Finding the Fourth Proportional to 838,747.20, 1,252,039.74 and 776,308.44

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Solution

The fourth proportional to 838,747.20, 1,252,039.74 and 776,308.44 is: 1,158,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,747.20 : 1,252,039.74 = 776,308.44 : x
  2. Step 2: Convert to fraction form
    838,747.20/1,252,039.74 = 776,308.44/x
  3. Step 3: Cross multiply
    838,747.20x = 1,252,039.74 × 776,308.44
  4. Step 4: Simplify right side
    838,747.20x = 971,969,017,377.41
  5. Step 5: Solve for x
    x = 971,969,017,377.41/838,747.20
  6. Step 6: Final answer
    x = 1,158,834.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.