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Finding the Fourth Proportional to 403,600.60, 606,713.10 and 286,085.80

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Solution

The fourth proportional to 403,600.60, 606,713.10 and 286,085.80 is: 430,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,600.60 : 606,713.10 = 286,085.80 : x
  2. Step 2: Convert to fraction form
    403,600.60/606,713.10 = 286,085.80/x
  3. Step 3: Cross multiply
    403,600.60x = 606,713.10 × 286,085.80
  4. Step 4: Simplify right side
    403,600.60x = 173,572,002,583.98
  5. Step 5: Solve for x
    x = 173,572,002,583.98/403,600.60
  6. Step 6: Final answer
    x = 430,058.83

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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.