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Finding the Fourth Proportional to 867,301.20, 1,300,951.80 and 804,315.60

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Solution

The fourth proportional to 867,301.20, 1,300,951.80 and 804,315.60 is: 1,206,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,301.20 : 1,300,951.80 = 804,315.60 : x
  2. Step 2: Convert to fraction form
    867,301.20/1,300,951.80 = 804,315.60/x
  3. Step 3: Cross multiply
    867,301.20x = 1,300,951.80 × 804,315.60
  4. Step 4: Simplify right side
    867,301.20x = 1,046,375,827,588.08
  5. Step 5: Solve for x
    x = 1,046,375,827,588.08/867,301.20
  6. Step 6: Final answer
    x = 1,206,473.40

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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.