Home / 877,634.64-1,211,159.70-495,718.20

Finding the Fourth Proportional to 877,634.64, 1,211,159.70 and 495,718.20

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Solution

The fourth proportional to 877,634.64, 1,211,159.70 and 495,718.20 is: 684,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,634.64 : 1,211,159.70 = 495,718.20 : x
  2. Step 2: Convert to fraction form
    877,634.64/1,211,159.70 = 495,718.20/x
  3. Step 3: Cross multiply
    877,634.64x = 1,211,159.70 × 495,718.20
  4. Step 4: Simplify right side
    877,634.64x = 600,393,906,396.54
  5. Step 5: Solve for x
    x = 600,393,906,396.54/877,634.64
  6. Step 6: Final answer
    x = 684,104.61

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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.