Home / 2,071,915.20-3,107,872.80-652,406.40

Finding the Fourth Proportional to 2,071,915.20, 3,107,872.80 and 652,406.40

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Solution

The fourth proportional to 2,071,915.20, 3,107,872.80 and 652,406.40 is: 978,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071,915.20 : 3,107,872.80 = 652,406.40 : x
  2. Step 2: Convert to fraction form
    2,071,915.20/3,107,872.80 = 652,406.40/x
  3. Step 3: Cross multiply
    2,071,915.20x = 3,107,872.80 × 652,406.40
  4. Step 4: Simplify right side
    2,071,915.20x = 2,027,596,105,105.92
  5. Step 5: Solve for x
    x = 2,027,596,105,105.92/2,071,915.20
  6. Step 6: Final answer
    x = 978,609.60

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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.