Home / 1,008,002.85-1,512,004.28-931,020.45

Finding the Fourth Proportional to 1,008,002.85, 1,512,004.28 and 931,020.45

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Solution

The fourth proportional to 1,008,002.85, 1,512,004.28 and 931,020.45 is: 1,396,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,002.85 : 1,512,004.28 = 931,020.45 : x
  2. Step 2: Convert to fraction form
    1,008,002.85/1,512,004.28 = 931,020.45/x
  3. Step 3: Cross multiply
    1,008,002.85x = 1,512,004.28 × 931,020.45
  4. Step 4: Simplify right side
    1,008,002.85x = 1,407,706,900,512.42
  5. Step 5: Solve for x
    x = 1,407,706,900,512.42/1,008,002.85
  6. Step 6: Final answer
    x = 1,396,530.68

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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.