Home / 786,126.24-1,179,250.92-280,796.40

Finding the Fourth Proportional to 786,126.24, 1,179,250.92 and 280,796.40

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Solution

The fourth proportional to 786,126.24, 1,179,250.92 and 280,796.40 is: 421,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,126.24 : 1,179,250.92 = 280,796.40 : x
  2. Step 2: Convert to fraction form
    786,126.24/1,179,250.92 = 280,796.40/x
  3. Step 3: Cross multiply
    786,126.24x = 1,179,250.92 × 280,796.40
  4. Step 4: Simplify right side
    786,126.24x = 331,129,413,032.69
  5. Step 5: Solve for x
    x = 331,129,413,032.69/786,126.24
  6. Step 6: Final answer
    x = 421,216.59

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1.5x scale

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.