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Finding the Fourth Proportional to 560,418.48, 840,619.56 and 260,731.44

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Solution

The fourth proportional to 560,418.48, 840,619.56 and 260,731.44 is: 391,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,418.48 : 840,619.56 = 260,731.44 : x
  2. Step 2: Convert to fraction form
    560,418.48/840,619.56 = 260,731.44/x
  3. Step 3: Cross multiply
    560,418.48x = 840,619.56 × 260,731.44
  4. Step 4: Simplify right side
    560,418.48x = 219,175,948,370.97
  5. Step 5: Solve for x
    x = 219,175,948,370.97/560,418.48
  6. Step 6: Final answer
    x = 391,093.36

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1.5x scale

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.