Home / 742,998.98-1,025,329.56-403,469.66

Finding the Fourth Proportional to 742,998.98, 1,025,329.56 and 403,469.66

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Solution

The fourth proportional to 742,998.98, 1,025,329.56 and 403,469.66 is: 556,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,998.98 : 1,025,329.56 = 403,469.66 : x
  2. Step 2: Convert to fraction form
    742,998.98/1,025,329.56 = 403,469.66/x
  3. Step 3: Cross multiply
    742,998.98x = 1,025,329.56 × 403,469.66
  4. Step 4: Simplify right side
    742,998.98x = 413,689,368,961.15
  5. Step 5: Solve for x
    x = 413,689,368,961.15/742,998.98
  6. Step 6: Final answer
    x = 556,783.23

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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.