Home / 811,475.01-1,217,323.31-338,049.66

Finding the Fourth Proportional to 811,475.01, 1,217,323.31 and 338,049.66

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Solution

The fourth proportional to 811,475.01, 1,217,323.31 and 338,049.66 is: 507,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,475.01 : 1,217,323.31 = 338,049.66 : x
  2. Step 2: Convert to fraction form
    811,475.01/1,217,323.31 = 338,049.66/x
  3. Step 3: Cross multiply
    811,475.01x = 1,217,323.31 × 338,049.66
  4. Step 4: Simplify right side
    811,475.01x = 411,515,724,800.36
  5. Step 5: Solve for x
    x = 411,515,724,800.36/811,475.01
  6. Step 6: Final answer
    x = 507,120.64

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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.