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Finding the Fourth Proportional to 1,352,974.18, 1,867,001.61 and 749,349.22

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Solution

The fourth proportional to 1,352,974.18, 1,867,001.61 and 749,349.22 is: 1,034,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,974.18 : 1,867,001.61 = 749,349.22 : x
  2. Step 2: Convert to fraction form
    1,352,974.18/1,867,001.61 = 749,349.22/x
  3. Step 3: Cross multiply
    1,352,974.18x = 1,867,001.61 × 749,349.22
  4. Step 4: Simplify right side
    1,352,974.18x = 1,399,036,200,192.24
  5. Step 5: Solve for x
    x = 1,399,036,200,192.24/1,352,974.18
  6. Step 6: Final answer
    x = 1,034,045.01

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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.