Home / 808,515.60-1,211,752.80-409,266.60

Finding the Fourth Proportional to 808,515.60, 1,211,752.80 and 409,266.60

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Solution

The fourth proportional to 808,515.60, 1,211,752.80 and 409,266.60 is: 613,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,515.60 : 1,211,752.80 = 409,266.60 : x
  2. Step 2: Convert to fraction form
    808,515.60/1,211,752.80 = 409,266.60/x
  3. Step 3: Cross multiply
    808,515.60x = 1,211,752.80 × 409,266.60
  4. Step 4: Simplify right side
    808,515.60x = 495,929,948,496.48
  5. Step 5: Solve for x
    x = 495,929,948,496.48/808,515.60
  6. Step 6: Final answer
    x = 613,383.28

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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.