Home / 1,431,401.10-2,147,101.65-684,905.10

Finding the Fourth Proportional to 1,431,401.10, 2,147,101.65 and 684,905.10

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Solution

The fourth proportional to 1,431,401.10, 2,147,101.65 and 684,905.10 is: 1,027,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,401.10 : 2,147,101.65 = 684,905.10 : x
  2. Step 2: Convert to fraction form
    1,431,401.10/2,147,101.65 = 684,905.10/x
  3. Step 3: Cross multiply
    1,431,401.10x = 2,147,101.65 × 684,905.10
  4. Step 4: Simplify right side
    1,431,401.10x = 1,470,560,870,303.41
  5. Step 5: Solve for x
    x = 1,470,560,870,303.41/1,431,401.10
  6. Step 6: Final answer
    x = 1,027,357.65

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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.