Home / 1,681,431.82-2,320,431.90-917,527.30

Finding the Fourth Proportional to 1,681,431.82, 2,320,431.90 and 917,527.30

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Solution

The fourth proportional to 1,681,431.82, 2,320,431.90 and 917,527.30 is: 1,266,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,431.82 : 2,320,431.90 = 917,527.30 : x
  2. Step 2: Convert to fraction form
    1,681,431.82/2,320,431.90 = 917,527.30/x
  3. Step 3: Cross multiply
    1,681,431.82x = 2,320,431.90 × 917,527.30
  4. Step 4: Simplify right side
    1,681,431.82x = 2,129,059,616,040.87
  5. Step 5: Solve for x
    x = 2,129,059,616,040.87/1,681,431.82
  6. Step 6: Final answer
    x = 1,266,218.23

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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.