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Finding the Fourth Proportional to 720,100.10, 1,079,136.03 and 550,965.62

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Solution

The fourth proportional to 720,100.10, 1,079,136.03 and 550,965.62 is: 825,672.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,100.10 : 1,079,136.03 = 550,965.62 : x
  2. Step 2: Convert to fraction form
    720,100.10/1,079,136.03 = 550,965.62/x
  3. Step 3: Cross multiply
    720,100.10x = 1,079,136.03 × 550,965.62
  4. Step 4: Simplify right side
    720,100.10x = 594,566,851,833.29
  5. Step 5: Solve for x
    x = 594,566,851,833.29/720,100.10
  6. Step 6: Final answer
    x = 825,672.50

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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.