Home / 815,764.54-1,125,754.04-453,221.86

Finding the Fourth Proportional to 815,764.54, 1,125,754.04 and 453,221.86

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Solution

The fourth proportional to 815,764.54, 1,125,754.04 and 453,221.86 is: 625,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,764.54 : 1,125,754.04 = 453,221.86 : x
  2. Step 2: Convert to fraction form
    815,764.54/1,125,754.04 = 453,221.86/x
  3. Step 3: Cross multiply
    815,764.54x = 1,125,754.04 × 453,221.86
  4. Step 4: Simplify right side
    815,764.54x = 510,216,339,911.31
  5. Step 5: Solve for x
    x = 510,216,339,911.31/815,764.54
  6. Step 6: Final answer
    x = 625,445.60

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1.5x scale

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.