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Finding the Fourth Proportional to 620,552.35, 856,357.15 and 348,614.52

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Solution

The fourth proportional to 620,552.35, 856,357.15 and 348,614.52 is: 481,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,552.35 : 856,357.15 = 348,614.52 : x
  2. Step 2: Convert to fraction form
    620,552.35/856,357.15 = 348,614.52/x
  3. Step 3: Cross multiply
    620,552.35x = 856,357.15 × 348,614.52
  4. Step 4: Simplify right side
    620,552.35x = 298,538,533,366.60
  5. Step 5: Solve for x
    x = 298,538,533,366.60/620,552.35
  6. Step 6: Final answer
    x = 481,085.17

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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.