Home / 1,172,802.78-1,618,641.90-743,123.16

Finding the Fourth Proportional to 1,172,802.78, 1,618,641.90 and 743,123.16

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Solution

The fourth proportional to 1,172,802.78, 1,618,641.90 and 743,123.16 is: 1,025,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,802.78 : 1,618,641.90 = 743,123.16 : x
  2. Step 2: Convert to fraction form
    1,172,802.78/1,618,641.90 = 743,123.16/x
  3. Step 3: Cross multiply
    1,172,802.78x = 1,618,641.90 × 743,123.16
  4. Step 4: Simplify right side
    1,172,802.78x = 1,202,850,283,636.40
  5. Step 5: Solve for x
    x = 1,202,850,283,636.40/1,172,802.78
  6. Step 6: Final answer
    x = 1,025,620.25

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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.