Home / 811,451.84-1,217,288.50-338,026.48

Finding the Fourth Proportional to 811,451.84, 1,217,288.50 and 338,026.48

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Solution

The fourth proportional to 811,451.84, 1,217,288.50 and 338,026.48 is: 507,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,451.84 : 1,217,288.50 = 338,026.48 : x
  2. Step 2: Convert to fraction form
    811,451.84/1,217,288.50 = 338,026.48/x
  3. Step 3: Cross multiply
    811,451.84x = 1,217,288.50 × 338,026.48
  4. Step 4: Simplify right side
    811,451.84x = 411,475,746,799.48
  5. Step 5: Solve for x
    x = 411,475,746,799.48/811,451.84
  6. Step 6: Final answer
    x = 507,085.85

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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.