Home / 877,820.90-1,211,491.44-495,872.26

Finding the Fourth Proportional to 877,820.90, 1,211,491.44 and 495,872.26

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Solution

The fourth proportional to 877,820.90, 1,211,491.44 and 495,872.26 is: 684,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,820.90 : 1,211,491.44 = 495,872.26 : x
  2. Step 2: Convert to fraction form
    877,820.90/1,211,491.44 = 495,872.26/x
  3. Step 3: Cross multiply
    877,820.90x = 1,211,491.44 × 495,872.26
  4. Step 4: Simplify right side
    877,820.90x = 600,744,998,323.45
  5. Step 5: Solve for x
    x = 600,744,998,323.45/877,820.90
  6. Step 6: Final answer
    x = 684,359.42

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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.