Home / 669,912.90-1,005,016.98-370,829.72

Finding the Fourth Proportional to 669,912.90, 1,005,016.98 and 370,829.72

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Solution

The fourth proportional to 669,912.90, 1,005,016.98 and 370,829.72 is: 556,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,912.90 : 1,005,016.98 = 370,829.72 : x
  2. Step 2: Convert to fraction form
    669,912.90/1,005,016.98 = 370,829.72/x
  3. Step 3: Cross multiply
    669,912.90x = 1,005,016.98 × 370,829.72
  4. Step 4: Simplify right side
    669,912.90x = 372,690,165,288.65
  5. Step 5: Solve for x
    x = 372,690,165,288.65/669,912.90
  6. Step 6: Final answer
    x = 556,326.30

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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.