Home / 1,227,421.69-1,841,198.14-386,039.05

Finding the Fourth Proportional to 1,227,421.69, 1,841,198.14 and 386,039.05

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Solution

The fourth proportional to 1,227,421.69, 1,841,198.14 and 386,039.05 is: 579,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,421.69 : 1,841,198.14 = 386,039.05 : x
  2. Step 2: Convert to fraction form
    1,227,421.69/1,841,198.14 = 386,039.05/x
  3. Step 3: Cross multiply
    1,227,421.69x = 1,841,198.14 × 386,039.05
  4. Step 4: Simplify right side
    1,227,421.69x = 710,774,376,706.92
  5. Step 5: Solve for x
    x = 710,774,376,706.92/1,227,421.69
  6. Step 6: Final answer
    x = 579,079.21

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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.