Home / 1,149,442.12-1,586,279.33-640,144.49

Finding the Fourth Proportional to 1,149,442.12, 1,586,279.33 and 640,144.49

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Solution

The fourth proportional to 1,149,442.12, 1,586,279.33 and 640,144.49 is: 883,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,442.12 : 1,586,279.33 = 640,144.49 : x
  2. Step 2: Convert to fraction form
    1,149,442.12/1,586,279.33 = 640,144.49/x
  3. Step 3: Cross multiply
    1,149,442.12x = 1,586,279.33 × 640,144.49
  4. Step 4: Simplify right side
    1,149,442.12x = 1,015,447,974,300.75
  5. Step 5: Solve for x
    x = 1,015,447,974,300.75/1,149,442.12
  6. Step 6: Final answer
    x = 883,426.80

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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.