Home / 939,804.42-1,296,340.04-557,560.50

Finding the Fourth Proportional to 939,804.42, 1,296,340.04 and 557,560.50

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Solution

The fourth proportional to 939,804.42, 1,296,340.04 and 557,560.50 is: 769,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,804.42 : 1,296,340.04 = 557,560.50 : x
  2. Step 2: Convert to fraction form
    939,804.42/1,296,340.04 = 557,560.50/x
  3. Step 3: Cross multiply
    939,804.42x = 1,296,340.04 × 557,560.50
  4. Step 4: Simplify right side
    939,804.42x = 722,788,000,872.42
  5. Step 5: Solve for x
    x = 722,788,000,872.42/939,804.42
  6. Step 6: Final answer
    x = 769,083.42

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Double scale
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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.