Home / 1,110,375-1,665,576.14-390,738.20

Finding the Fourth Proportional to 1,110,375, 1,665,576.14 and 390,738.20

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Solution

The fourth proportional to 1,110,375, 1,665,576.14 and 390,738.20 is: 586,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,375 : 1,665,576.14 = 390,738.20 : x
  2. Step 2: Convert to fraction form
    1,110,375/1,665,576.14 = 390,738.20/x
  3. Step 3: Cross multiply
    1,110,375x = 1,665,576.14 × 390,738.20
  4. Step 4: Simplify right side
    1,110,375x = 650,804,212,624.98
  5. Step 5: Solve for x
    x = 650,804,212,624.98/1,110,375
  6. Step 6: Final answer
    x = 586,112.09

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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.