Home / 668,616.55-1,003,403.67-284,634.61

Finding the Fourth Proportional to 668,616.55, 1,003,403.67 and 284,634.61

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Solution

The fourth proportional to 668,616.55, 1,003,403.67 and 284,634.61 is: 427,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,616.55 : 1,003,403.67 = 284,634.61 : x
  2. Step 2: Convert to fraction form
    668,616.55/1,003,403.67 = 284,634.61/x
  3. Step 3: Cross multiply
    668,616.55x = 1,003,403.67 × 284,634.61
  4. Step 4: Simplify right side
    668,616.55x = 285,603,412,283.02
  5. Step 5: Solve for x
    x = 285,603,412,283.02/668,616.55
  6. Step 6: Final answer
    x = 427,155.76

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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.