Home / 1,440,989.04-2,162,231.24-642,084.78

Finding the Fourth Proportional to 1,440,989.04, 2,162,231.24 and 642,084.78

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Solution

The fourth proportional to 1,440,989.04, 2,162,231.24 and 642,084.78 is: 963,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,989.04 : 2,162,231.24 = 642,084.78 : x
  2. Step 2: Convert to fraction form
    1,440,989.04/2,162,231.24 = 642,084.78/x
  3. Step 3: Cross multiply
    1,440,989.04x = 2,162,231.24 × 642,084.78
  4. Step 4: Simplify right side
    1,440,989.04x = 1,388,335,763,541.37
  5. Step 5: Solve for x
    x = 1,388,335,763,541.37/1,440,989.04
  6. Step 6: Final answer
    x = 963,460.32

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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.