Home / 408,886.36-564,166.76-343,723

Finding the Fourth Proportional to 408,886.36, 564,166.76 and 343,723

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Solution

The fourth proportional to 408,886.36, 564,166.76 and 343,723 is: 474,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,886.36 : 564,166.76 = 343,723 : x
  2. Step 2: Convert to fraction form
    408,886.36/564,166.76 = 343,723/x
  3. Step 3: Cross multiply
    408,886.36x = 564,166.76 × 343,723
  4. Step 4: Simplify right side
    408,886.36x = 193,917,091,247.48
  5. Step 5: Solve for x
    x = 193,917,091,247.48/408,886.36
  6. Step 6: Final answer
    x = 474,256.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.