Home / 1,376,693.46-2,065,331.88-430,135.56

Finding the Fourth Proportional to 1,376,693.46, 2,065,331.88 and 430,135.56

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Solution

The fourth proportional to 1,376,693.46, 2,065,331.88 and 430,135.56 is: 645,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,693.46 : 2,065,331.88 = 430,135.56 : x
  2. Step 2: Convert to fraction form
    1,376,693.46/2,065,331.88 = 430,135.56/x
  3. Step 3: Cross multiply
    1,376,693.46x = 2,065,331.88 × 430,135.56
  4. Step 4: Simplify right side
    1,376,693.46x = 888,372,684,789.65
  5. Step 5: Solve for x
    x = 888,372,684,789.65/1,376,693.46
  6. Step 6: Final answer
    x = 645,294.48

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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.