Home / 1,291,805.64-1,781,681.94-839,242.44

Finding the Fourth Proportional to 1,291,805.64, 1,781,681.94 and 839,242.44

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Solution

The fourth proportional to 1,291,805.64, 1,781,681.94 and 839,242.44 is: 1,157,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,805.64 : 1,781,681.94 = 839,242.44 : x
  2. Step 2: Convert to fraction form
    1,291,805.64/1,781,681.94 = 839,242.44/x
  3. Step 3: Cross multiply
    1,291,805.64x = 1,781,681.94 × 839,242.44
  4. Step 4: Simplify right side
    1,291,805.64x = 1,495,263,098,629.53
  5. Step 5: Solve for x
    x = 1,495,263,098,629.53/1,291,805.64
  6. Step 6: Final answer
    x = 1,157,498.51

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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.