Home / 874,608.78-1,206,964.35-492,641.58

Finding the Fourth Proportional to 874,608.78, 1,206,964.35 and 492,641.58

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Solution

The fourth proportional to 874,608.78, 1,206,964.35 and 492,641.58 is: 679,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,608.78 : 1,206,964.35 = 492,641.58 : x
  2. Step 2: Convert to fraction form
    874,608.78/1,206,964.35 = 492,641.58/x
  3. Step 3: Cross multiply
    874,608.78x = 1,206,964.35 × 492,641.58
  4. Step 4: Simplify right side
    874,608.78x = 594,600,824,387.67
  5. Step 5: Solve for x
    x = 594,600,824,387.67/874,608.78
  6. Step 6: Final answer
    x = 679,847.77

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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.