Home / 642,824.66-964,255.20-243,390.98

Finding the Fourth Proportional to 642,824.66, 964,255.20 and 243,390.98

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Solution

The fourth proportional to 642,824.66, 964,255.20 and 243,390.98 is: 365,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,824.66 : 964,255.20 = 243,390.98 : x
  2. Step 2: Convert to fraction form
    642,824.66/964,255.20 = 243,390.98/x
  3. Step 3: Cross multiply
    642,824.66x = 964,255.20 × 243,390.98
  4. Step 4: Simplify right side
    642,824.66x = 234,691,018,098.10
  5. Step 5: Solve for x
    x = 234,691,018,098.10/642,824.66
  6. Step 6: Final answer
    x = 365,093.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.