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Finding the Fourth Proportional to 510,952.44, 705,105.36 and 281,531.28

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Solution

The fourth proportional to 510,952.44, 705,105.36 and 281,531.28 is: 388,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,952.44 : 705,105.36 = 281,531.28 : x
  2. Step 2: Convert to fraction form
    510,952.44/705,105.36 = 281,531.28/x
  3. Step 3: Cross multiply
    510,952.44x = 705,105.36 × 281,531.28
  4. Step 4: Simplify right side
    510,952.44x = 198,509,214,535.66
  5. Step 5: Solve for x
    x = 198,509,214,535.66/510,952.44
  6. Step 6: Final answer
    x = 388,508.20

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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.