Home / 340,939.12-512,529.83-316,276.90

Finding the Fourth Proportional to 340,939.12, 512,529.83 and 316,276.90

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Solution

The fourth proportional to 340,939.12, 512,529.83 and 316,276.90 is: 475,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,939.12 : 512,529.83 = 316,276.90 : x
  2. Step 2: Convert to fraction form
    340,939.12/512,529.83 = 316,276.90/x
  3. Step 3: Cross multiply
    340,939.12x = 512,529.83 × 316,276.90
  4. Step 4: Simplify right side
    340,939.12x = 162,101,344,849.21
  5. Step 5: Solve for x
    x = 162,101,344,849.21/340,939.12
  6. Step 6: Final answer
    x = 475,455.40

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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.