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Finding the Fourth Proportional to 611,468.80, 843,851.22 and 353,337.19

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Solution

The fourth proportional to 611,468.80, 843,851.22 and 353,337.19 is: 487,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,468.80 : 843,851.22 = 353,337.19 : x
  2. Step 2: Convert to fraction form
    611,468.80/843,851.22 = 353,337.19/x
  3. Step 3: Cross multiply
    611,468.80x = 843,851.22 × 353,337.19
  4. Step 4: Simplify right side
    611,468.80x = 298,164,015,418.23
  5. Step 5: Solve for x
    x = 298,164,015,418.23/611,468.80
  6. Step 6: Final answer
    x = 487,619.35

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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.