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Finding the Fourth Proportional to 620,008.26, 855,582.24 and 344,383.98

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Solution

The fourth proportional to 620,008.26, 855,582.24 and 344,383.98 is: 475,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,008.26 : 855,582.24 = 344,383.98 : x
  2. Step 2: Convert to fraction form
    620,008.26/855,582.24 = 344,383.98/x
  3. Step 3: Cross multiply
    620,008.26x = 855,582.24 × 344,383.98
  4. Step 4: Simplify right side
    620,008.26x = 294,648,817,028.52
  5. Step 5: Solve for x
    x = 294,648,817,028.52/620,008.26
  6. Step 6: Final answer
    x = 475,233.70

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1.5x scale

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.