Home / 811,537.38-1,217,416.64-338,112.02

Finding the Fourth Proportional to 811,537.38, 1,217,416.64 and 338,112.02

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Solution

The fourth proportional to 811,537.38, 1,217,416.64 and 338,112.02 is: 507,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,537.38 : 1,217,416.64 = 338,112.02 : x
  2. Step 2: Convert to fraction form
    811,537.38/1,217,416.64 = 338,112.02/x
  3. Step 3: Cross multiply
    811,537.38x = 1,217,416.64 × 338,112.02
  4. Step 4: Simplify right side
    811,537.38x = 411,623,200,684.99
  5. Step 5: Solve for x
    x = 411,623,200,684.99/811,537.38
  6. Step 6: Final answer
    x = 507,214.10

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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.