Home / 1,931,972.88-2,666,131.92-1,207,241.52

Finding the Fourth Proportional to 1,931,972.88, 2,666,131.92 and 1,207,241.52

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Solution

The fourth proportional to 1,931,972.88, 2,666,131.92 and 1,207,241.52 is: 1,665,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,972.88 : 2,666,131.92 = 1,207,241.52 : x
  2. Step 2: Convert to fraction form
    1,931,972.88/2,666,131.92 = 1,207,241.52/x
  3. Step 3: Cross multiply
    1,931,972.88x = 2,666,131.92 × 1,207,241.52
  4. Step 4: Simplify right side
    1,931,972.88x = 3,218,665,151,621.32
  5. Step 5: Solve for x
    x = 3,218,665,151,621.32/1,931,972.88
  6. Step 6: Final answer
    x = 1,665,999.14

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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.