Home / 1,008,147.05-1,512,220.58-871,289.45

Finding the Fourth Proportional to 1,008,147.05, 1,512,220.58 and 871,289.45

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Solution

The fourth proportional to 1,008,147.05, 1,512,220.58 and 871,289.45 is: 1,306,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,147.05 : 1,512,220.58 = 871,289.45 : x
  2. Step 2: Convert to fraction form
    1,008,147.05/1,512,220.58 = 871,289.45/x
  3. Step 3: Cross multiply
    1,008,147.05x = 1,512,220.58 × 871,289.45
  4. Step 4: Simplify right side
    1,008,147.05x = 1,317,581,833,070.43
  5. Step 5: Solve for x
    x = 1,317,581,833,070.43/1,008,147.05
  6. Step 6: Final answer
    x = 1,306,934.18

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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.