Home / 1,432,938.40-2,149,924.32-722,431.40

Finding the Fourth Proportional to 1,432,938.40, 2,149,924.32 and 722,431.40

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Solution

The fourth proportional to 1,432,938.40, 2,149,924.32 and 722,431.40 is: 1,083,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,938.40 : 2,149,924.32 = 722,431.40 : x
  2. Step 2: Convert to fraction form
    1,432,938.40/2,149,924.32 = 722,431.40/x
  3. Step 3: Cross multiply
    1,432,938.40x = 2,149,924.32 × 722,431.40
  4. Step 4: Simplify right side
    1,432,938.40x = 1,553,172,836,391.65
  5. Step 5: Solve for x
    x = 1,553,172,836,391.65/1,432,938.40
  6. Step 6: Final answer
    x = 1,083,907.61

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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.