Home / 741,707.51-1,112,747.81-342,630.64

Finding the Fourth Proportional to 741,707.51, 1,112,747.81 and 342,630.64

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Solution

The fourth proportional to 741,707.51, 1,112,747.81 and 342,630.64 is: 514,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,707.51 : 1,112,747.81 = 342,630.64 : x
  2. Step 2: Convert to fraction form
    741,707.51/1,112,747.81 = 342,630.64/x
  3. Step 3: Cross multiply
    741,707.51x = 1,112,747.81 × 342,630.64
  4. Step 4: Simplify right side
    741,707.51x = 381,261,489,803.88
  5. Step 5: Solve for x
    x = 381,261,489,803.88/741,707.51
  6. Step 6: Final answer
    x = 514,032.13

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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.