Home / 728,929.80-1,093,066.65-329,364.90

Finding the Fourth Proportional to 728,929.80, 1,093,066.65 and 329,364.90

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Solution

The fourth proportional to 728,929.80, 1,093,066.65 and 329,364.90 is: 493,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,929.80 : 1,093,066.65 = 329,364.90 : x
  2. Step 2: Convert to fraction form
    728,929.80/1,093,066.65 = 329,364.90/x
  3. Step 3: Cross multiply
    728,929.80x = 1,093,066.65 × 329,364.90
  4. Step 4: Simplify right side
    728,929.80x = 360,017,787,870.59
  5. Step 5: Solve for x
    x = 360,017,787,870.59/728,929.80
  6. Step 6: Final answer
    x = 493,899.12

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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.