Home / 1,287,204.48-1,776,427.08-743,363.12

Finding the Fourth Proportional to 1,287,204.48, 1,776,427.08 and 743,363.12

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Solution

The fourth proportional to 1,287,204.48, 1,776,427.08 and 743,363.12 is: 1,025,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,204.48 : 1,776,427.08 = 743,363.12 : x
  2. Step 2: Convert to fraction form
    1,287,204.48/1,776,427.08 = 743,363.12/x
  3. Step 3: Cross multiply
    1,287,204.48x = 1,776,427.08 × 743,363.12
  4. Step 4: Simplify right side
    1,287,204.48x = 1,320,530,376,641.29
  5. Step 5: Solve for x
    x = 1,320,530,376,641.29/1,287,204.48
  6. Step 6: Final answer
    x = 1,025,890.13

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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.