Home / 811,449.84-1,217,285.50-338,024.48

Finding the Fourth Proportional to 811,449.84, 1,217,285.50 and 338,024.48

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Solution

The fourth proportional to 811,449.84, 1,217,285.50 and 338,024.48 is: 507,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,449.84 : 1,217,285.50 = 338,024.48 : x
  2. Step 2: Convert to fraction form
    811,449.84/1,217,285.50 = 338,024.48/x
  3. Step 3: Cross multiply
    811,449.84x = 1,217,285.50 × 338,024.48
  4. Step 4: Simplify right side
    811,449.84x = 411,472,303,263.40
  5. Step 5: Solve for x
    x = 411,472,303,263.40/811,449.84
  6. Step 6: Final answer
    x = 507,082.86

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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.