Home / 1,276,222.76-1,913,857.50-423,137.96

Finding the Fourth Proportional to 1,276,222.76, 1,913,857.50 and 423,137.96

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Solution

The fourth proportional to 1,276,222.76, 1,913,857.50 and 423,137.96 is: 634,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,222.76 : 1,913,857.50 = 423,137.96 : x
  2. Step 2: Convert to fraction form
    1,276,222.76/1,913,857.50 = 423,137.96/x
  3. Step 3: Cross multiply
    1,276,222.76x = 1,913,857.50 × 423,137.96
  4. Step 4: Simplify right side
    1,276,222.76x = 809,825,758,280.70
  5. Step 5: Solve for x
    x = 809,825,758,280.70/1,276,222.76
  6. Step 6: Final answer
    x = 634,548.91

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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.