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Finding the Fourth Proportional to 620,127.54, 855,723.66 and 375,203.52

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Solution

The fourth proportional to 620,127.54, 855,723.66 and 375,203.52 is: 517,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,127.54 : 855,723.66 = 375,203.52 : x
  2. Step 2: Convert to fraction form
    620,127.54/855,723.66 = 375,203.52/x
  3. Step 3: Cross multiply
    620,127.54x = 855,723.66 × 375,203.52
  4. Step 4: Simplify right side
    620,127.54x = 321,070,529,379.28
  5. Step 5: Solve for x
    x = 321,070,529,379.28/620,127.54
  6. Step 6: Final answer
    x = 517,749.19

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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.