Home / 855,102.30-1,281,851.55-322,980.90

Finding the Fourth Proportional to 855,102.30, 1,281,851.55 and 322,980.90

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Solution

The fourth proportional to 855,102.30, 1,281,851.55 and 322,980.90 is: 484,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,102.30 : 1,281,851.55 = 322,980.90 : x
  2. Step 2: Convert to fraction form
    855,102.30/1,281,851.55 = 322,980.90/x
  3. Step 3: Cross multiply
    855,102.30x = 1,281,851.55 × 322,980.90
  4. Step 4: Simplify right side
    855,102.30x = 414,013,567,285.40
  5. Step 5: Solve for x
    x = 414,013,567,285.40/855,102.30
  6. Step 6: Final answer
    x = 484,168.46

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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.