Home / 547,530.10-821,285.43-281,134.06

Finding the Fourth Proportional to 547,530.10, 821,285.43 and 281,134.06

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Solution

The fourth proportional to 547,530.10, 821,285.43 and 281,134.06 is: 421,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,530.10 : 821,285.43 = 281,134.06 : x
  2. Step 2: Convert to fraction form
    547,530.10/821,285.43 = 281,134.06/x
  3. Step 3: Cross multiply
    547,530.10x = 821,285.43 × 281,134.06
  4. Step 4: Simplify right side
    547,530.10x = 230,891,307,354.75
  5. Step 5: Solve for x
    x = 230,891,307,354.75/547,530.10
  6. Step 6: Final answer
    x = 421,696.10

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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.