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Finding the Fourth Proportional to 1,197,947.03, 1,797,280.72 and 718,702.43

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Solution

The fourth proportional to 1,197,947.03, 1,797,280.72 and 718,702.43 is: 1,078,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,947.03 : 1,797,280.72 = 718,702.43 : x
  2. Step 2: Convert to fraction form
    1,197,947.03/1,797,280.72 = 718,702.43/x
  3. Step 3: Cross multiply
    1,197,947.03x = 1,797,280.72 × 718,702.43
  4. Step 4: Simplify right side
    1,197,947.03x = 1,291,710,010,072.99
  5. Step 5: Solve for x
    x = 1,291,710,010,072.99/1,197,947.03
  6. Step 6: Final answer
    x = 1,078,269.73

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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.