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Finding the Fourth Proportional to 1,245,937.02, 1,719,394.14 and 672,977.66

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Solution

The fourth proportional to 1,245,937.02, 1,719,394.14 and 672,977.66 is: 928,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,937.02 : 1,719,394.14 = 672,977.66 : x
  2. Step 2: Convert to fraction form
    1,245,937.02/1,719,394.14 = 672,977.66/x
  3. Step 3: Cross multiply
    1,245,937.02x = 1,719,394.14 × 672,977.66
  4. Step 4: Simplify right side
    1,245,937.02x = 1,157,113,836,357.94
  5. Step 5: Solve for x
    x = 1,157,113,836,357.94/1,245,937.02
  6. Step 6: Final answer
    x = 928,709.73

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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.