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Finding the Fourth Proportional to 698,553.25, 964,003.49 and 380,601.25

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Solution

The fourth proportional to 698,553.25, 964,003.49 and 380,601.25 is: 525,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,553.25 : 964,003.49 = 380,601.25 : x
  2. Step 2: Convert to fraction form
    698,553.25/964,003.49 = 380,601.25/x
  3. Step 3: Cross multiply
    698,553.25x = 964,003.49 × 380,601.25
  4. Step 4: Simplify right side
    698,553.25x = 366,900,931,395.36
  5. Step 5: Solve for x
    x = 366,900,931,395.36/698,553.25
  6. Step 6: Final answer
    x = 525,229.73

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1.5x scale

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.