Home / 1,387,427.04-2,078,963.28-826,155.36

Finding the Fourth Proportional to 1,387,427.04, 2,078,963.28 and 826,155.36

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Solution

The fourth proportional to 1,387,427.04, 2,078,963.28 and 826,155.36 is: 1,237,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,427.04 : 2,078,963.28 = 826,155.36 : x
  2. Step 2: Convert to fraction form
    1,387,427.04/2,078,963.28 = 826,155.36/x
  3. Step 3: Cross multiply
    1,387,427.04x = 2,078,963.28 × 826,155.36
  4. Step 4: Simplify right side
    1,387,427.04x = 1,717,546,657,015.18
  5. Step 5: Solve for x
    x = 1,717,546,657,015.18/1,387,427.04
  6. Step 6: Final answer
    x = 1,237,936.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.