Home / 1,681,436.69-2,320,438.64-917,532.17

Finding the Fourth Proportional to 1,681,436.69, 2,320,438.64 and 917,532.17

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Solution

The fourth proportional to 1,681,436.69, 2,320,438.64 and 917,532.17 is: 1,266,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,436.69 : 2,320,438.64 = 917,532.17 : x
  2. Step 2: Convert to fraction form
    1,681,436.69/2,320,438.64 = 917,532.17/x
  3. Step 3: Cross multiply
    1,681,436.69x = 2,320,438.64 × 917,532.17
  4. Step 4: Simplify right side
    1,681,436.69x = 2,129,077,100,711.05
  5. Step 5: Solve for x
    x = 2,129,077,100,711.05/1,681,436.69
  6. Step 6: Final answer
    x = 1,266,224.96

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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.