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Finding the Fourth Proportional to 459,343.92, 634,071.90 and 306,326.82

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Solution

The fourth proportional to 459,343.92, 634,071.90 and 306,326.82 is: 422,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,343.92 : 634,071.90 = 306,326.82 : x
  2. Step 2: Convert to fraction form
    459,343.92/634,071.90 = 306,326.82/x
  3. Step 3: Cross multiply
    459,343.92x = 634,071.90 × 306,326.82
  4. Step 4: Simplify right side
    459,343.92x = 194,233,228,778.36
  5. Step 5: Solve for x
    x = 194,233,228,778.36/459,343.92
  6. Step 6: Final answer
    x = 422,849.24

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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.