Home / 846,689.49-1,269,368.42-579,640.59

Finding the Fourth Proportional to 846,689.49, 1,269,368.42 and 579,640.59

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Solution

The fourth proportional to 846,689.49, 1,269,368.42 and 579,640.59 is: 869,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,689.49 : 1,269,368.42 = 579,640.59 : x
  2. Step 2: Convert to fraction form
    846,689.49/1,269,368.42 = 579,640.59/x
  3. Step 3: Cross multiply
    846,689.49x = 1,269,368.42 × 579,640.59
  4. Step 4: Simplify right side
    846,689.49x = 735,777,456,997.97
  5. Step 5: Solve for x
    x = 735,777,456,997.97/846,689.49
  6. Step 6: Final answer
    x = 869,005.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.