Home / 890,228.68-1,335,344.69-216,310.55

Finding the Fourth Proportional to 890,228.68, 1,335,344.69 and 216,310.55

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Solution

The fourth proportional to 890,228.68, 1,335,344.69 and 216,310.55 is: 324,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,228.68 : 1,335,344.69 = 216,310.55 : x
  2. Step 2: Convert to fraction form
    890,228.68/1,335,344.69 = 216,310.55/x
  3. Step 3: Cross multiply
    890,228.68x = 1,335,344.69 × 216,310.55
  4. Step 4: Simplify right side
    890,228.68x = 288,849,143,251.93
  5. Step 5: Solve for x
    x = 288,849,143,251.93/890,228.68
  6. Step 6: Final answer
    x = 324,466.23

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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.