Home / 890,318.32-1,335,465.81-216,397.66

Finding the Fourth Proportional to 890,318.32, 1,335,465.81 and 216,397.66

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Solution

The fourth proportional to 890,318.32, 1,335,465.81 and 216,397.66 is: 324,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,318.32 : 1,335,465.81 = 216,397.66 : x
  2. Step 2: Convert to fraction form
    890,318.32/1,335,465.81 = 216,397.66/x
  3. Step 3: Cross multiply
    890,318.32x = 1,335,465.81 × 216,397.66
  4. Step 4: Simplify right side
    890,318.32x = 288,991,676,294.01
  5. Step 5: Solve for x
    x = 288,991,676,294.01/890,318.32
  6. Step 6: Final answer
    x = 324,593.65

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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.