Home / 1,276,231.76-1,913,870.96-423,146.96

Finding the Fourth Proportional to 1,276,231.76, 1,913,870.96 and 423,146.96

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Solution

The fourth proportional to 1,276,231.76, 1,913,870.96 and 423,146.96 is: 634,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,231.76 : 1,913,870.96 = 423,146.96 : x
  2. Step 2: Convert to fraction form
    1,276,231.76/1,913,870.96 = 423,146.96/x
  3. Step 3: Cross multiply
    1,276,231.76x = 1,913,870.96 × 423,146.96
  4. Step 4: Simplify right side
    1,276,231.76x = 809,848,678,556.28
  5. Step 5: Solve for x
    x = 809,848,678,556.28/1,276,231.76
  6. Step 6: Final answer
    x = 634,562.39

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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.