Home / 741,639.65-1,023,482.79-419,397.75

Finding the Fourth Proportional to 741,639.65, 1,023,482.79 and 419,397.75

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Solution

The fourth proportional to 741,639.65, 1,023,482.79 and 419,397.75 is: 578,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,639.65 : 1,023,482.79 = 419,397.75 : x
  2. Step 2: Convert to fraction form
    741,639.65/1,023,482.79 = 419,397.75/x
  3. Step 3: Cross multiply
    741,639.65x = 1,023,482.79 × 419,397.75
  4. Step 4: Simplify right side
    741,639.65x = 429,246,379,289.72
  5. Step 5: Solve for x
    x = 429,246,379,289.72/741,639.65
  6. Step 6: Final answer
    x = 578,780.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.