Home / 811,654.14-1,217,647.26-279,106.01

Finding the Fourth Proportional to 811,654.14, 1,217,647.26 and 279,106.01

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Solution

The fourth proportional to 811,654.14, 1,217,647.26 and 279,106.01 is: 418,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,654.14 : 1,217,647.26 = 279,106.01 : x
  2. Step 2: Convert to fraction form
    811,654.14/1,217,647.26 = 279,106.01/x
  3. Step 3: Cross multiply
    811,654.14x = 1,217,647.26 × 279,106.01
  4. Step 4: Simplify right side
    811,654.14x = 339,852,662,237.80
  5. Step 5: Solve for x
    x = 339,852,662,237.80/811,654.14
  6. Step 6: Final answer
    x = 418,716.11

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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.