Home / 767,756.20-1,151,634.16-412,281.22

Finding the Fourth Proportional to 767,756.20, 1,151,634.16 and 412,281.22

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Solution

The fourth proportional to 767,756.20, 1,151,634.16 and 412,281.22 is: 618,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,756.20 : 1,151,634.16 = 412,281.22 : x
  2. Step 2: Convert to fraction form
    767,756.20/1,151,634.16 = 412,281.22/x
  3. Step 3: Cross multiply
    767,756.20x = 1,151,634.16 × 412,281.22
  4. Step 4: Simplify right side
    767,756.20x = 474,797,136,478.48
  5. Step 5: Solve for x
    x = 474,797,136,478.48/767,756.20
  6. Step 6: Final answer
    x = 618,421.75

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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.