Home / 890,438.65-1,335,639.25-216,523.45

Finding the Fourth Proportional to 890,438.65, 1,335,639.25 and 216,523.45

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Solution

The fourth proportional to 890,438.65, 1,335,639.25 and 216,523.45 is: 324,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,438.65 : 1,335,639.25 = 216,523.45 : x
  2. Step 2: Convert to fraction form
    890,438.65/1,335,639.25 = 216,523.45/x
  3. Step 3: Cross multiply
    890,438.65x = 1,335,639.25 × 216,523.45
  4. Step 4: Simplify right side
    890,438.65x = 289,197,218,365.41
  5. Step 5: Solve for x
    x = 289,197,218,365.41/890,438.65
  6. Step 6: Final answer
    x = 324,780.62

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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.