Home / 1,291,805.14-1,781,681.25-839,241.94

Finding the Fourth Proportional to 1,291,805.14, 1,781,681.25 and 839,241.94

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Solution

The fourth proportional to 1,291,805.14, 1,781,681.25 and 839,241.94 is: 1,157,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,805.14 : 1,781,681.25 = 839,241.94 : x
  2. Step 2: Convert to fraction form
    1,291,805.14/1,781,681.25 = 839,241.94/x
  3. Step 3: Cross multiply
    1,291,805.14x = 1,781,681.25 × 839,241.94
  4. Step 4: Simplify right side
    1,291,805.14x = 1,495,261,628,711.63
  5. Step 5: Solve for x
    x = 1,495,261,628,711.63/1,291,805.14
  6. Step 6: Final answer
    x = 1,157,497.82

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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.