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Finding the Fourth Proportional to 713,485.36, 984,640.54 and 426,950.29

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Solution

The fourth proportional to 713,485.36, 984,640.54 and 426,950.29 is: 589,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,485.36 : 984,640.54 = 426,950.29 : x
  2. Step 2: Convert to fraction form
    713,485.36/984,640.54 = 426,950.29/x
  3. Step 3: Cross multiply
    713,485.36x = 984,640.54 × 426,950.29
  4. Step 4: Simplify right side
    713,485.36x = 420,392,559,175.55
  5. Step 5: Solve for x
    x = 420,392,559,175.55/713,485.36
  6. Step 6: Final answer
    x = 589,209.79

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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.