Home / 1,283,340.21-1,924,345.83-684,140.43

Finding the Fourth Proportional to 1,283,340.21, 1,924,345.83 and 684,140.43

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Solution

The fourth proportional to 1,283,340.21, 1,924,345.83 and 684,140.43 is: 1,025,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,340.21 : 1,924,345.83 = 684,140.43 : x
  2. Step 2: Convert to fraction form
    1,283,340.21/1,924,345.83 = 684,140.43/x
  3. Step 3: Cross multiply
    1,283,340.21x = 1,924,345.83 × 684,140.43
  4. Step 4: Simplify right side
    1,283,340.21x = 1,316,522,783,604.91
  5. Step 5: Solve for x
    x = 1,316,522,783,604.91/1,283,340.21
  6. Step 6: Final answer
    x = 1,025,856.41

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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.