Home / 874,966.20-1,312,449.30-869,436.60

Finding the Fourth Proportional to 874,966.20, 1,312,449.30 and 869,436.60

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Solution

The fourth proportional to 874,966.20, 1,312,449.30 and 869,436.60 is: 1,304,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,966.20 : 1,312,449.30 = 869,436.60 : x
  2. Step 2: Convert to fraction form
    874,966.20/1,312,449.30 = 869,436.60/x
  3. Step 3: Cross multiply
    874,966.20x = 1,312,449.30 × 869,436.60
  4. Step 4: Simplify right side
    874,966.20x = 1,141,091,457,064.38
  5. Step 5: Solve for x
    x = 1,141,091,457,064.38/874,966.20
  6. Step 6: Final answer
    x = 1,304,154.90

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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.