Home / 1,310,478.24-1,965,998.03-742,127.97

Finding the Fourth Proportional to 1,310,478.24, 1,965,998.03 and 742,127.97

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Solution

The fourth proportional to 1,310,478.24, 1,965,998.03 and 742,127.97 is: 1,113,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,478.24 : 1,965,998.03 = 742,127.97 : x
  2. Step 2: Convert to fraction form
    1,310,478.24/1,965,998.03 = 742,127.97/x
  3. Step 3: Cross multiply
    1,310,478.24x = 1,965,998.03 × 742,127.97
  4. Step 4: Simplify right side
    1,310,478.24x = 1,459,022,134,864.22
  5. Step 5: Solve for x
    x = 1,459,022,134,864.22/1,310,478.24
  6. Step 6: Final answer
    x = 1,113,350.90

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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.