Home / 811,598.85-1,217,564.36-279,050.69

Finding the Fourth Proportional to 811,598.85, 1,217,564.36 and 279,050.69

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Solution

The fourth proportional to 811,598.85, 1,217,564.36 and 279,050.69 is: 418,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,598.85 : 1,217,564.36 = 279,050.69 : x
  2. Step 2: Convert to fraction form
    811,598.85/1,217,564.36 = 279,050.69/x
  3. Step 3: Cross multiply
    811,598.85x = 1,217,564.36 × 279,050.69
  4. Step 4: Simplify right side
    811,598.85x = 339,762,167,294.33
  5. Step 5: Solve for x
    x = 339,762,167,294.33/811,598.85
  6. Step 6: Final answer
    x = 418,633.13

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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.