Home / 811,451.43-1,217,287.89-338,026.07

Finding the Fourth Proportional to 811,451.43, 1,217,287.89 and 338,026.07

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Solution

The fourth proportional to 811,451.43, 1,217,287.89 and 338,026.07 is: 507,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,451.43 : 1,217,287.89 = 338,026.07 : x
  2. Step 2: Convert to fraction form
    811,451.43/1,217,287.89 = 338,026.07/x
  3. Step 3: Cross multiply
    811,451.43x = 1,217,287.89 × 338,026.07
  4. Step 4: Simplify right side
    811,451.43x = 411,475,044,558.51
  5. Step 5: Solve for x
    x = 411,475,044,558.51/811,451.43
  6. Step 6: Final answer
    x = 507,085.24

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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.