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Finding the Fourth Proportional to 543,860.64, 750,492.84 and 302,138.76

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Solution

The fourth proportional to 543,860.64, 750,492.84 and 302,138.76 is: 416,932.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,860.64 : 750,492.84 = 302,138.76 : x
  2. Step 2: Convert to fraction form
    543,860.64/750,492.84 = 302,138.76/x
  3. Step 3: Cross multiply
    543,860.64x = 750,492.84 × 302,138.76
  4. Step 4: Simplify right side
    543,860.64x = 226,752,976,066.48
  5. Step 5: Solve for x
    x = 226,752,976,066.48/543,860.64
  6. Step 6: Final answer
    x = 416,932.13

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Why These Related Problems?

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