Home / 645,768.80-968,025.17-308,722.13

Finding the Fourth Proportional to 645,768.80, 968,025.17 and 308,722.13

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Solution

The fourth proportional to 645,768.80, 968,025.17 and 308,722.13 is: 462,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,768.80 : 968,025.17 = 308,722.13 : x
  2. Step 2: Convert to fraction form
    645,768.80/968,025.17 = 308,722.13/x
  3. Step 3: Cross multiply
    645,768.80x = 968,025.17 × 308,722.13
  4. Step 4: Simplify right side
    645,768.80x = 298,850,788,307.69
  5. Step 5: Solve for x
    x = 298,850,788,307.69/645,768.80
  6. Step 6: Final answer
    x = 462,782.95

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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.