Home / 456,822.90-685,374.48-204,315.78

Finding the Fourth Proportional to 456,822.90, 685,374.48 and 204,315.78

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Solution

The fourth proportional to 456,822.90, 685,374.48 and 204,315.78 is: 306,536.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,822.90 : 685,374.48 = 204,315.78 : x
  2. Step 2: Convert to fraction form
    456,822.90/685,374.48 = 204,315.78/x
  3. Step 3: Cross multiply
    456,822.90x = 685,374.48 × 204,315.78
  4. Step 4: Simplify right side
    456,822.90x = 140,032,821,473.29
  5. Step 5: Solve for x
    x = 140,032,821,473.29/456,822.90
  6. Step 6: Final answer
    x = 306,536.34

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1.5x scale

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.