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Finding the Fourth Proportional to 702,019.08, 968,782.68 and 379,728.18

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Solution

The fourth proportional to 702,019.08, 968,782.68 and 379,728.18 is: 524,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,019.08 : 968,782.68 = 379,728.18 : x
  2. Step 2: Convert to fraction form
    702,019.08/968,782.68 = 379,728.18/x
  3. Step 3: Cross multiply
    702,019.08x = 968,782.68 × 379,728.18
  4. Step 4: Simplify right side
    702,019.08x = 367,874,083,891.92
  5. Step 5: Solve for x
    x = 367,874,083,891.92/702,019.08
  6. Step 6: Final answer
    x = 524,022.91

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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.