Home / 987,380.55-1,479,880.13-454,170.51

Finding the Fourth Proportional to 987,380.55, 1,479,880.13 and 454,170.51

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Solution

The fourth proportional to 987,380.55, 1,479,880.13 and 454,170.51 is: 680,708.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,380.55 : 1,479,880.13 = 454,170.51 : x
  2. Step 2: Convert to fraction form
    987,380.55/1,479,880.13 = 454,170.51/x
  3. Step 3: Cross multiply
    987,380.55x = 1,479,880.13 × 454,170.51
  4. Step 4: Simplify right side
    987,380.55x = 672,117,911,110.11
  5. Step 5: Solve for x
    x = 672,117,911,110.11/987,380.55
  6. Step 6: Final answer
    x = 680,708.07

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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.