Home / 2,945,187.78-4,417,289.55-815,487.18

Finding the Fourth Proportional to 2,945,187.78, 4,417,289.55 and 815,487.18

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Solution

The fourth proportional to 2,945,187.78, 4,417,289.55 and 815,487.18 is: 1,223,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,187.78 : 4,417,289.55 = 815,487.18 : x
  2. Step 2: Convert to fraction form
    2,945,187.78/4,417,289.55 = 815,487.18/x
  3. Step 3: Cross multiply
    2,945,187.78x = 4,417,289.55 × 815,487.18
  4. Step 4: Simplify right side
    2,945,187.78x = 3,602,242,998,372.97
  5. Step 5: Solve for x
    x = 3,602,242,998,372.97/2,945,187.78
  6. Step 6: Final answer
    x = 1,223,094.51

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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.