Home / 767,790.34-1,151,685.30-412,315.36

Finding the Fourth Proportional to 767,790.34, 1,151,685.30 and 412,315.36

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Solution

The fourth proportional to 767,790.34, 1,151,685.30 and 412,315.36 is: 618,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,790.34 : 1,151,685.30 = 412,315.36 : x
  2. Step 2: Convert to fraction form
    767,790.34/1,151,685.30 = 412,315.36/x
  3. Step 3: Cross multiply
    767,790.34x = 1,151,685.30 × 412,315.36
  4. Step 4: Simplify right side
    767,790.34x = 474,857,539,076.21
  5. Step 5: Solve for x
    x = 474,857,539,076.21/767,790.34
  6. Step 6: Final answer
    x = 618,472.93

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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.