Home / 698,758.21-964,263.82-392,847.45

Finding the Fourth Proportional to 698,758.21, 964,263.82 and 392,847.45

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Solution

The fourth proportional to 698,758.21, 964,263.82 and 392,847.45 is: 542,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,758.21 : 964,263.82 = 392,847.45 : x
  2. Step 2: Convert to fraction form
    698,758.21/964,263.82 = 392,847.45/x
  3. Step 3: Cross multiply
    698,758.21x = 964,263.82 × 392,847.45
  4. Step 4: Simplify right side
    698,758.21x = 378,808,582,814.26
  5. Step 5: Solve for x
    x = 378,808,582,814.26/698,758.21
  6. Step 6: Final answer
    x = 542,116.83

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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.