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Finding the Fourth Proportional to 610,612.92, 842,611.47 and 338,661.29

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Solution

The fourth proportional to 610,612.92, 842,611.47 and 338,661.29 is: 467,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,612.92 : 842,611.47 = 338,661.29 : x
  2. Step 2: Convert to fraction form
    610,612.92/842,611.47 = 338,661.29/x
  3. Step 3: Cross multiply
    610,612.92x = 842,611.47 × 338,661.29
  4. Step 4: Simplify right side
    610,612.92x = 285,359,887,399.00
  5. Step 5: Solve for x
    x = 285,359,887,399.00/610,612.92
  6. Step 6: Final answer
    x = 467,333.52

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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.