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Finding the Fourth Proportional to 487,560.44, 728,100.64 and 482,282.48

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Solution

The fourth proportional to 487,560.44, 728,100.64 and 482,282.48 is: 720,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,560.44 : 728,100.64 = 482,282.48 : x
  2. Step 2: Convert to fraction form
    487,560.44/728,100.64 = 482,282.48/x
  3. Step 3: Cross multiply
    487,560.44x = 728,100.64 × 482,282.48
  4. Step 4: Simplify right side
    487,560.44x = 351,150,182,348.79
  5. Step 5: Solve for x
    x = 351,150,182,348.79/487,560.44
  6. Step 6: Final answer
    x = 720,218.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.