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Finding the Fourth Proportional to 729,532.80, 1,093,780.80 and 330,364.80

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Solution

The fourth proportional to 729,532.80, 1,093,780.80 and 330,364.80 is: 495,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,532.80 : 1,093,780.80 = 330,364.80 : x
  2. Step 2: Convert to fraction form
    729,532.80/1,093,780.80 = 330,364.80/x
  3. Step 3: Cross multiply
    729,532.80x = 1,093,780.80 × 330,364.80
  4. Step 4: Simplify right side
    729,532.80x = 361,346,675,235.84
  5. Step 5: Solve for x
    x = 361,346,675,235.84/729,532.80
  6. Step 6: Final answer
    x = 495,312.45

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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.