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Finding the Fourth Proportional to 403,352.60, 606,341.10 and 285,837.80

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Solution

The fourth proportional to 403,352.60, 606,341.10 and 285,837.80 is: 429,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,352.60 : 606,341.10 = 285,837.80 : x
  2. Step 2: Convert to fraction form
    403,352.60/606,341.10 = 285,837.80/x
  3. Step 3: Cross multiply
    403,352.60x = 606,341.10 × 285,837.80
  4. Step 4: Simplify right side
    403,352.60x = 173,315,206,073.58
  5. Step 5: Solve for x
    x = 173,315,206,073.58/403,352.60
  6. Step 6: Final answer
    x = 429,686.60

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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.