Home / 1,255,374.08-1,889,892.06-1,143,771.20

Finding the Fourth Proportional to 1,255,374.08, 1,889,892.06 and 1,143,771.20

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Solution

The fourth proportional to 1,255,374.08, 1,889,892.06 and 1,143,771.20 is: 1,721,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,374.08 : 1,889,892.06 = 1,143,771.20 : x
  2. Step 2: Convert to fraction form
    1,255,374.08/1,889,892.06 = 1,143,771.20/x
  3. Step 3: Cross multiply
    1,255,374.08x = 1,889,892.06 × 1,143,771.20
  4. Step 4: Simplify right side
    1,255,374.08x = 2,161,604,109,336.67
  5. Step 5: Solve for x
    x = 2,161,604,109,336.67/1,255,374.08
  6. Step 6: Final answer
    x = 1,721,880.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.