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Finding the Fourth Proportional to 896,912.60, 1,344,907.20 and 265,744.40

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Solution

The fourth proportional to 896,912.60, 1,344,907.20 and 265,744.40 is: 398,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,912.60 : 1,344,907.20 = 265,744.40 : x
  2. Step 2: Convert to fraction form
    896,912.60/1,344,907.20 = 265,744.40/x
  3. Step 3: Cross multiply
    896,912.60x = 1,344,907.20 × 265,744.40
  4. Step 4: Simplify right side
    896,912.60x = 357,401,556,919.68
  5. Step 5: Solve for x
    x = 357,401,556,919.68/896,912.60
  6. Step 6: Final answer
    x = 398,479.80

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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.