Home / 939,801.42-1,296,335.91-557,557.50

Finding the Fourth Proportional to 939,801.42, 1,296,335.91 and 557,557.50

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Solution

The fourth proportional to 939,801.42, 1,296,335.91 and 557,557.50 is: 769,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,801.42 : 1,296,335.91 = 557,557.50 : x
  2. Step 2: Convert to fraction form
    939,801.42/1,296,335.91 = 557,557.50/x
  3. Step 3: Cross multiply
    939,801.42x = 1,296,335.91 × 557,557.50
  4. Step 4: Simplify right side
    939,801.42x = 722,781,809,139.83
  5. Step 5: Solve for x
    x = 722,781,809,139.83/939,801.42
  6. Step 6: Final answer
    x = 769,079.29

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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.