Home / 1,309,439.88-1,964,639.55-551,472.12

Finding the Fourth Proportional to 1,309,439.88, 1,964,639.55 and 551,472.12

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Solution

The fourth proportional to 1,309,439.88, 1,964,639.55 and 551,472.12 is: 827,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,439.88 : 1,964,639.55 = 551,472.12 : x
  2. Step 2: Convert to fraction form
    1,309,439.88/1,964,639.55 = 551,472.12/x
  3. Step 3: Cross multiply
    1,309,439.88x = 1,964,639.55 × 551,472.12
  4. Step 4: Simplify right side
    1,309,439.88x = 1,083,443,937,674.35
  5. Step 5: Solve for x
    x = 1,083,443,937,674.35/1,309,439.88
  6. Step 6: Final answer
    x = 827,410.22

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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.