Home / 912,820.80-1,369,231.20-886,576.80

Finding the Fourth Proportional to 912,820.80, 1,369,231.20 and 886,576.80

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Solution

The fourth proportional to 912,820.80, 1,369,231.20 and 886,576.80 is: 1,329,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,820.80 : 1,369,231.20 = 886,576.80 : x
  2. Step 2: Convert to fraction form
    912,820.80/1,369,231.20 = 886,576.80/x
  3. Step 3: Cross multiply
    912,820.80x = 1,369,231.20 × 886,576.80
  4. Step 4: Simplify right side
    912,820.80x = 1,213,928,615,756.16
  5. Step 5: Solve for x
    x = 1,213,928,615,756.16/912,820.80
  6. Step 6: Final answer
    x = 1,329,865.20

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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.