Home / 1,587,470.81-2,186,703.97-1,280,688.19

Finding the Fourth Proportional to 1,587,470.81, 2,186,703.97 and 1,280,688.19

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Solution

The fourth proportional to 1,587,470.81, 2,186,703.97 and 1,280,688.19 is: 1,764,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,470.81 : 2,186,703.97 = 1,280,688.19 : x
  2. Step 2: Convert to fraction form
    1,587,470.81/2,186,703.97 = 1,280,688.19/x
  3. Step 3: Cross multiply
    1,587,470.81x = 2,186,703.97 × 1,280,688.19
  4. Step 4: Simplify right side
    1,587,470.81x = 2,800,485,940,736.63
  5. Step 5: Solve for x
    x = 2,800,485,940,736.63/1,587,470.81
  6. Step 6: Final answer
    x = 1,764,118.08

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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.