Home / 772,123.80-1,159,514.30-738,908.74

Finding the Fourth Proportional to 772,123.80, 1,159,514.30 and 738,908.74

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Solution

The fourth proportional to 772,123.80, 1,159,514.30 and 738,908.74 is: 1,109,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,123.80 : 1,159,514.30 = 738,908.74 : x
  2. Step 2: Convert to fraction form
    772,123.80/1,159,514.30 = 738,908.74/x
  3. Step 3: Cross multiply
    772,123.80x = 1,159,514.30 × 738,908.74
  4. Step 4: Simplify right side
    772,123.80x = 856,775,249,373.47
  5. Step 5: Solve for x
    x = 856,775,249,373.47/772,123.80
  6. Step 6: Final answer
    x = 1,109,634.56

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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.