Home / 693,719.64-1,040,579.93-188,280.72

Finding the Fourth Proportional to 693,719.64, 1,040,579.93 and 188,280.72

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Solution

The fourth proportional to 693,719.64, 1,040,579.93 and 188,280.72 is: 282,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,719.64 : 1,040,579.93 = 188,280.72 : x
  2. Step 2: Convert to fraction form
    693,719.64/1,040,579.93 = 188,280.72/x
  3. Step 3: Cross multiply
    693,719.64x = 1,040,579.93 × 188,280.72
  4. Step 4: Simplify right side
    693,719.64x = 195,921,138,908.65
  5. Step 5: Solve for x
    x = 195,921,138,908.65/693,719.64
  6. Step 6: Final answer
    x = 282,421.21

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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.