Home / 2,133,515.09-3,200,275.87-871,342.71

Finding the Fourth Proportional to 2,133,515.09, 3,200,275.87 and 871,342.71

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Solution

The fourth proportional to 2,133,515.09, 3,200,275.87 and 871,342.71 is: 1,307,015.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133,515.09 : 3,200,275.87 = 871,342.71 : x
  2. Step 2: Convert to fraction form
    2,133,515.09/3,200,275.87 = 871,342.71/x
  3. Step 3: Cross multiply
    2,133,515.09x = 3,200,275.87 × 871,342.71
  4. Step 4: Simplify right side
    2,133,515.09x = 2,788,537,053,313.75
  5. Step 5: Solve for x
    x = 2,788,537,053,313.75/2,133,515.09
  6. Step 6: Final answer
    x = 1,307,015.39

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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.