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Finding the Fourth Proportional to 894,061.80, 1,342,647.90 and 866,068.20

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Solution

The fourth proportional to 894,061.80, 1,342,647.90 and 866,068.20 is: 1,300,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,061.80 : 1,342,647.90 = 866,068.20 : x
  2. Step 2: Convert to fraction form
    894,061.80/1,342,647.90 = 866,068.20/x
  3. Step 3: Cross multiply
    894,061.80x = 1,342,647.90 × 866,068.20
  4. Step 4: Simplify right side
    894,061.80x = 1,162,824,649,986.78
  5. Step 5: Solve for x
    x = 1,162,824,649,986.78/894,061.80
  6. Step 6: Final answer
    x = 1,300,608.81

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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.