Home / 1,915,470.39-2,871,858.35-889,711.66

Finding the Fourth Proportional to 1,915,470.39, 2,871,858.35 and 889,711.66

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Solution

The fourth proportional to 1,915,470.39, 2,871,858.35 and 889,711.66 is: 1,333,941.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,470.39 : 2,871,858.35 = 889,711.66 : x
  2. Step 2: Convert to fraction form
    1,915,470.39/2,871,858.35 = 889,711.66/x
  3. Step 3: Cross multiply
    1,915,470.39x = 2,871,858.35 × 889,711.66
  4. Step 4: Simplify right side
    1,915,470.39x = 2,555,125,852,430.31
  5. Step 5: Solve for x
    x = 2,555,125,852,430.31/1,915,470.39
  6. Step 6: Final answer
    x = 1,333,941.71

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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.