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Finding the Fourth Proportional to 510,759.80, 704,825.61 and 292,812.20

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Solution

The fourth proportional to 510,759.80, 704,825.61 and 292,812.20 is: 404,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,759.80 : 704,825.61 = 292,812.20 : x
  2. Step 2: Convert to fraction form
    510,759.80/704,825.61 = 292,812.20/x
  3. Step 3: Cross multiply
    510,759.80x = 704,825.61 × 292,812.20
  4. Step 4: Simplify right side
    510,759.80x = 206,381,537,480.44
  5. Step 5: Solve for x
    x = 206,381,537,480.44/510,759.80
  6. Step 6: Final answer
    x = 404,067.70

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1.5x scale

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.