Home / 694,540.80-1,042,502.40-339,955.20

Finding the Fourth Proportional to 694,540.80, 1,042,502.40 and 339,955.20

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Solution

The fourth proportional to 694,540.80, 1,042,502.40 and 339,955.20 is: 510,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,540.80 : 1,042,502.40 = 339,955.20 : x
  2. Step 2: Convert to fraction form
    694,540.80/1,042,502.40 = 339,955.20/x
  3. Step 3: Cross multiply
    694,540.80x = 1,042,502.40 × 339,955.20
  4. Step 4: Simplify right side
    694,540.80x = 354,404,111,892.48
  5. Step 5: Solve for x
    x = 354,404,111,892.48/694,540.80
  6. Step 6: Final answer
    x = 510,271.12

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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.