Home / 811,475.26-1,217,323.66-338,049.90

Finding the Fourth Proportional to 811,475.26, 1,217,323.66 and 338,049.90

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Solution

The fourth proportional to 811,475.26, 1,217,323.66 and 338,049.90 is: 507,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,475.26 : 1,217,323.66 = 338,049.90 : x
  2. Step 2: Convert to fraction form
    811,475.26/1,217,323.66 = 338,049.90/x
  3. Step 3: Cross multiply
    811,475.26x = 1,217,323.66 × 338,049.90
  4. Step 4: Simplify right side
    811,475.26x = 411,516,141,530.63
  5. Step 5: Solve for x
    x = 411,516,141,530.63/811,475.26
  6. Step 6: Final answer
    x = 507,121.00

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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.