Home / 766,507.12-1,149,899.28-316,983.94

Finding the Fourth Proportional to 766,507.12, 1,149,899.28 and 316,983.94

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Solution

The fourth proportional to 766,507.12, 1,149,899.28 and 316,983.94 is: 475,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,507.12 : 1,149,899.28 = 316,983.94 : x
  2. Step 2: Convert to fraction form
    766,507.12/1,149,899.28 = 316,983.94/x
  3. Step 3: Cross multiply
    766,507.12x = 1,149,899.28 × 316,983.94
  4. Step 4: Simplify right side
    766,507.12x = 364,499,604,377.56
  5. Step 5: Solve for x
    x = 364,499,604,377.56/766,507.12
  6. Step 6: Final answer
    x = 475,533.23

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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.