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Finding the Fourth Proportional to 728,759.64, 1,093,270.71 and 349,358.88

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Solution

The fourth proportional to 728,759.64, 1,093,270.71 and 349,358.88 is: 524,101.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,759.64 : 1,093,270.71 = 349,358.88 : x
  2. Step 2: Convert to fraction form
    728,759.64/1,093,270.71 = 349,358.88/x
  3. Step 3: Cross multiply
    728,759.64x = 1,093,270.71 × 349,358.88
  4. Step 4: Simplify right side
    728,759.64x = 381,943,830,782.41
  5. Step 5: Solve for x
    x = 381,943,830,782.41/728,759.64
  6. Step 6: Final answer
    x = 524,101.24

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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.