Home / 543,629.40-815,055.30-243,864.60

Finding the Fourth Proportional to 543,629.40, 815,055.30 and 243,864.60

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Solution

The fourth proportional to 543,629.40, 815,055.30 and 243,864.60 is: 365,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,629.40 : 815,055.30 = 243,864.60 : x
  2. Step 2: Convert to fraction form
    543,629.40/815,055.30 = 243,864.60/x
  3. Step 3: Cross multiply
    543,629.40x = 815,055.30 × 243,864.60
  4. Step 4: Simplify right side
    543,629.40x = 198,763,134,712.38
  5. Step 5: Solve for x
    x = 198,763,134,712.38/543,629.40
  6. Step 6: Final answer
    x = 365,622.49

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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.