Home / 1,378,551.50-2,065,935.51-872,206.04

Finding the Fourth Proportional to 1,378,551.50, 2,065,935.51 and 872,206.04

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Solution

The fourth proportional to 1,378,551.50, 2,065,935.51 and 872,206.04 is: 1,307,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,551.50 : 2,065,935.51 = 872,206.04 : x
  2. Step 2: Convert to fraction form
    1,378,551.50/2,065,935.51 = 872,206.04/x
  3. Step 3: Cross multiply
    1,378,551.50x = 2,065,935.51 × 872,206.04
  4. Step 4: Simplify right side
    1,378,551.50x = 1,801,921,419,742.80
  5. Step 5: Solve for x
    x = 1,801,921,419,742.80/1,378,551.50
  6. Step 6: Final answer
    x = 1,307,112.16

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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.