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Finding the Fourth Proportional to 610,765.56, 842,857.47 and 338,833.47

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Solution

The fourth proportional to 610,765.56, 842,857.47 and 338,833.47 is: 467,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,765.56 : 842,857.47 = 338,833.47 : x
  2. Step 2: Convert to fraction form
    610,765.56/842,857.47 = 338,833.47/x
  3. Step 3: Cross multiply
    610,765.56x = 842,857.47 × 338,833.47
  4. Step 4: Simplify right side
    610,765.56x = 285,588,321,275.52
  5. Step 5: Solve for x
    x = 285,588,321,275.52/610,765.56
  6. Step 6: Final answer
    x = 467,590.74

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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.