Home / 811,822.31-1,218,214.53-452,294.09

Finding the Fourth Proportional to 811,822.31, 1,218,214.53 and 452,294.09

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Solution

The fourth proportional to 811,822.31, 1,218,214.53 and 452,294.09 is: 678,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,822.31 : 1,218,214.53 = 452,294.09 : x
  2. Step 2: Convert to fraction form
    811,822.31/1,218,214.53 = 452,294.09/x
  3. Step 3: Cross multiply
    811,822.31x = 1,218,214.53 × 452,294.09
  4. Step 4: Simplify right side
    811,822.31x = 550,991,226,180.06
  5. Step 5: Solve for x
    x = 550,991,226,180.06/811,822.31
  6. Step 6: Final answer
    x = 678,709.15

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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.