Home / 1,315,915.20-1,969,207.20-896,011.20

Finding the Fourth Proportional to 1,315,915.20, 1,969,207.20 and 896,011.20

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Solution

The fourth proportional to 1,315,915.20, 1,969,207.20 and 896,011.20 is: 1,340,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,915.20 : 1,969,207.20 = 896,011.20 : x
  2. Step 2: Convert to fraction form
    1,315,915.20/1,969,207.20 = 896,011.20/x
  3. Step 3: Cross multiply
    1,315,915.20x = 1,969,207.20 × 896,011.20
  4. Step 4: Simplify right side
    1,315,915.20x = 1,764,431,706,320.64
  5. Step 5: Solve for x
    x = 1,764,431,706,320.64/1,315,915.20
  6. Step 6: Final answer
    x = 1,340,839.98

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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.