Home / 698,553.75-964,004.18-380,601.75

Finding the Fourth Proportional to 698,553.75, 964,004.18 and 380,601.75

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Solution

The fourth proportional to 698,553.75, 964,004.18 and 380,601.75 is: 525,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,553.75 : 964,004.18 = 380,601.75 : x
  2. Step 2: Convert to fraction form
    698,553.75/964,004.18 = 380,601.75/x
  3. Step 3: Cross multiply
    698,553.75x = 964,004.18 × 380,601.75
  4. Step 4: Simplify right side
    698,553.75x = 366,901,677,915.32
  5. Step 5: Solve for x
    x = 366,901,677,915.32/698,553.75
  6. Step 6: Final answer
    x = 525,230.42

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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.