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Finding the Fourth Proportional to 868,647.40, 1,302,906.30 and 363,077.80

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Solution

The fourth proportional to 868,647.40, 1,302,906.30 and 363,077.80 is: 544,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,647.40 : 1,302,906.30 = 363,077.80 : x
  2. Step 2: Convert to fraction form
    868,647.40/1,302,906.30 = 363,077.80/x
  3. Step 3: Cross multiply
    868,647.40x = 1,302,906.30 × 363,077.80
  4. Step 4: Simplify right side
    868,647.40x = 473,056,353,010.14
  5. Step 5: Solve for x
    x = 473,056,353,010.14/868,647.40
  6. Step 6: Final answer
    x = 544,589.61

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1.5x scale

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.