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Finding the Fourth Proportional to 850,608.60, 1,275,912.90 and 702,986.10

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Solution

The fourth proportional to 850,608.60, 1,275,912.90 and 702,986.10 is: 1,054,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,608.60 : 1,275,912.90 = 702,986.10 : x
  2. Step 2: Convert to fraction form
    850,608.60/1,275,912.90 = 702,986.10/x
  3. Step 3: Cross multiply
    850,608.60x = 1,275,912.90 × 702,986.10
  4. Step 4: Simplify right side
    850,608.60x = 896,949,033,510.69
  5. Step 5: Solve for x
    x = 896,949,033,510.69/850,608.60
  6. Step 6: Final answer
    x = 1,054,479.15

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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.