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Finding the Fourth Proportional to 459,992.36, 634,789.37 and 256,038.91

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Solution

The fourth proportional to 459,992.36, 634,789.37 and 256,038.91 is: 353,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,992.36 : 634,789.37 = 256,038.91 : x
  2. Step 2: Convert to fraction form
    459,992.36/634,789.37 = 256,038.91/x
  3. Step 3: Cross multiply
    459,992.36x = 634,789.37 × 256,038.91
  4. Step 4: Simplify right side
    459,992.36x = 162,530,778,374.39
  5. Step 5: Solve for x
    x = 162,530,778,374.39/459,992.36
  6. Step 6: Final answer
    x = 353,333.65

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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.