Home / 907,452.58-1,252,672.20-645,976.66

Finding the Fourth Proportional to 907,452.58, 1,252,672.20 and 645,976.66

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Solution

The fourth proportional to 907,452.58, 1,252,672.20 and 645,976.66 is: 891,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,452.58 : 1,252,672.20 = 645,976.66 : x
  2. Step 2: Convert to fraction form
    907,452.58/1,252,672.20 = 645,976.66/x
  3. Step 3: Cross multiply
    907,452.58x = 1,252,672.20 × 645,976.66
  4. Step 4: Simplify right side
    907,452.58x = 809,197,003,830.85
  5. Step 5: Solve for x
    x = 809,197,003,830.85/907,452.58
  6. Step 6: Final answer
    x = 891,723.73

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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.