Home / 1,920,988.94-2,651,066.78-1,105,316.55

Finding the Fourth Proportional to 1,920,988.94, 2,651,066.78 and 1,105,316.55

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Solution

The fourth proportional to 1,920,988.94, 2,651,066.78 and 1,105,316.55 is: 1,525,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,988.94 : 2,651,066.78 = 1,105,316.55 : x
  2. Step 2: Convert to fraction form
    1,920,988.94/2,651,066.78 = 1,105,316.55/x
  3. Step 3: Cross multiply
    1,920,988.94x = 2,651,066.78 × 1,105,316.55
  4. Step 4: Simplify right side
    1,920,988.94x = 2,930,267,981,562.63
  5. Step 5: Solve for x
    x = 2,930,267,981,562.63/1,920,988.94
  6. Step 6: Final answer
    x = 1,525,395.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.