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Finding the Fourth Proportional to 847,319.80, 1,270,978.80 and 216,233.56

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Solution

The fourth proportional to 847,319.80, 1,270,978.80 and 216,233.56 is: 324,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,319.80 : 1,270,978.80 = 216,233.56 : x
  2. Step 2: Convert to fraction form
    847,319.80/1,270,978.80 = 216,233.56/x
  3. Step 3: Cross multiply
    847,319.80x = 1,270,978.80 × 216,233.56
  4. Step 4: Simplify right side
    847,319.80x = 274,828,270,608.53
  5. Step 5: Solve for x
    x = 274,828,270,608.53/847,319.80
  6. Step 6: Final answer
    x = 324,350.11

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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.