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Finding the Fourth Proportional to 982,491.40, 1,473,737 and 272,519.47

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Solution

The fourth proportional to 982,491.40, 1,473,737 and 272,519.47 is: 408,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,491.40 : 1,473,737 = 272,519.47 : x
  2. Step 2: Convert to fraction form
    982,491.40/1,473,737 = 272,519.47/x
  3. Step 3: Cross multiply
    982,491.40x = 1,473,737 × 272,519.47
  4. Step 4: Simplify right side
    982,491.40x = 401,622,018,790.71
  5. Step 5: Solve for x
    x = 401,622,018,790.71/982,491.40
  6. Step 6: Final answer
    x = 408,779.17

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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.