Home / 1,440,989.30-2,162,231.62-642,085.03

Finding the Fourth Proportional to 1,440,989.30, 2,162,231.62 and 642,085.03

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Solution

The fourth proportional to 1,440,989.30, 2,162,231.62 and 642,085.03 is: 963,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,989.30 : 2,162,231.62 = 642,085.03 : x
  2. Step 2: Convert to fraction form
    1,440,989.30/2,162,231.62 = 642,085.03/x
  3. Step 3: Cross multiply
    1,440,989.30x = 2,162,231.62 × 642,085.03
  4. Step 4: Simplify right side
    1,440,989.30x = 1,388,336,547,583.86
  5. Step 5: Solve for x
    x = 1,388,336,547,583.86/1,440,989.30
  6. Step 6: Final answer
    x = 963,460.69

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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.