Home / 2,945,187.28-4,417,288.80-815,486.68

Finding the Fourth Proportional to 2,945,187.28, 4,417,288.80 and 815,486.68

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Solution

The fourth proportional to 2,945,187.28, 4,417,288.80 and 815,486.68 is: 1,223,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945,187.28 : 4,417,288.80 = 815,486.68 : x
  2. Step 2: Convert to fraction form
    2,945,187.28/4,417,288.80 = 815,486.68/x
  3. Step 3: Cross multiply
    2,945,187.28x = 4,417,288.80 × 815,486.68
  4. Step 4: Simplify right side
    2,945,187.28x = 3,602,240,178,113.18
  5. Step 5: Solve for x
    x = 3,602,240,178,113.18/2,945,187.28
  6. Step 6: Final answer
    x = 1,223,093.76

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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.