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Finding the Fourth Proportional to 867,016.72, 1,300,898.64 and 361,677.22

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Solution

The fourth proportional to 867,016.72, 1,300,898.64 and 361,677.22 is: 542,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,016.72 : 1,300,898.64 = 361,677.22 : x
  2. Step 2: Convert to fraction form
    867,016.72/1,300,898.64 = 361,677.22/x
  3. Step 3: Cross multiply
    867,016.72x = 1,300,898.64 × 361,677.22
  4. Step 4: Simplify right side
    867,016.72x = 470,505,403,616.98
  5. Step 5: Solve for x
    x = 470,505,403,616.98/867,016.72
  6. Step 6: Final answer
    x = 542,671.66

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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.