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Finding the Fourth Proportional to 897,647.40, 1,344,502.80 and 797,920.20

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Solution

The fourth proportional to 897,647.40, 1,344,502.80 and 797,920.20 is: 1,195,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,647.40 : 1,344,502.80 = 797,920.20 : x
  2. Step 2: Convert to fraction form
    897,647.40/1,344,502.80 = 797,920.20/x
  3. Step 3: Cross multiply
    897,647.40x = 1,344,502.80 × 797,920.20
  4. Step 4: Simplify right side
    897,647.40x = 1,072,805,943,076.56
  5. Step 5: Solve for x
    x = 1,072,805,943,076.56/897,647.40
  6. Step 6: Final answer
    x = 1,195,130.68

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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.