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Finding the Fourth Proportional to 853,626.39, 1,178,002 and 471,650.45

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Solution

The fourth proportional to 853,626.39, 1,178,002 and 471,650.45 is: 650,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,626.39 : 1,178,002 = 471,650.45 : x
  2. Step 2: Convert to fraction form
    853,626.39/1,178,002 = 471,650.45/x
  3. Step 3: Cross multiply
    853,626.39x = 1,178,002 × 471,650.45
  4. Step 4: Simplify right side
    853,626.39x = 555,605,173,400.90
  5. Step 5: Solve for x
    x = 555,605,173,400.90/853,626.39
  6. Step 6: Final answer
    x = 650,876.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.