Home / 1,287,177-1,776,389.13-743,335.62

Finding the Fourth Proportional to 1,287,177, 1,776,389.13 and 743,335.62

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Solution

The fourth proportional to 1,287,177, 1,776,389.13 and 743,335.62 is: 1,025,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,177 : 1,776,389.13 = 743,335.62 : x
  2. Step 2: Convert to fraction form
    1,287,177/1,776,389.13 = 743,335.62/x
  3. Step 3: Cross multiply
    1,287,177x = 1,776,389.13 × 743,335.62
  4. Step 4: Simplify right side
    1,287,177x = 1,320,453,315,309.81
  5. Step 5: Solve for x
    x = 1,320,453,315,309.81/1,287,177
  6. Step 6: Final answer
    x = 1,025,852.17

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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.