Home / 817,205.20-1,223,532.60-416,981.20

Finding the Fourth Proportional to 817,205.20, 1,223,532.60 and 416,981.20

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Solution

The fourth proportional to 817,205.20, 1,223,532.60 and 416,981.20 is: 624,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,205.20 : 1,223,532.60 = 416,981.20 : x
  2. Step 2: Convert to fraction form
    817,205.20/1,223,532.60 = 416,981.20/x
  3. Step 3: Cross multiply
    817,205.20x = 1,223,532.60 × 416,981.20
  4. Step 4: Simplify right side
    817,205.20x = 510,190,091,787.12
  5. Step 5: Solve for x
    x = 510,190,091,787.12/817,205.20
  6. Step 6: Final answer
    x = 624,310.87

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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.