Home / 1,986,772.71-2,742,718.27-1,333,164.88

Finding the Fourth Proportional to 1,986,772.71, 2,742,718.27 and 1,333,164.88

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Solution

The fourth proportional to 1,986,772.71, 2,742,718.27 and 1,333,164.88 is: 1,840,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,772.71 : 2,742,718.27 = 1,333,164.88 : x
  2. Step 2: Convert to fraction form
    1,986,772.71/2,742,718.27 = 1,333,164.88/x
  3. Step 3: Cross multiply
    1,986,772.71x = 2,742,718.27 × 1,333,164.88
  4. Step 4: Simplify right side
    1,986,772.71x = 3,656,495,663,108.65
  5. Step 5: Solve for x
    x = 3,656,495,663,108.65/1,986,772.71
  6. Step 6: Final answer
    x = 1,840,419.71

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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.