Home / 1,321,486.75-1,823,497-777,502.90

Finding the Fourth Proportional to 1,321,486.75, 1,823,497 and 777,502.90

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Solution

The fourth proportional to 1,321,486.75, 1,823,497 and 777,502.90 is: 1,072,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,486.75 : 1,823,497 = 777,502.90 : x
  2. Step 2: Convert to fraction form
    1,321,486.75/1,823,497 = 777,502.90/x
  3. Step 3: Cross multiply
    1,321,486.75x = 1,823,497 × 777,502.90
  4. Step 4: Simplify right side
    1,321,486.75x = 1,417,774,205,641.30
  5. Step 5: Solve for x
    x = 1,417,774,205,641.30/1,321,486.75
  6. Step 6: Final answer
    x = 1,072,862.97

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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.