Home / 940,416.71-1,298,172.29-634,906.86

Finding the Fourth Proportional to 940,416.71, 1,298,172.29 and 634,906.86

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Solution

The fourth proportional to 940,416.71, 1,298,172.29 and 634,906.86 is: 876,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,416.71 : 1,298,172.29 = 634,906.86 : x
  2. Step 2: Convert to fraction form
    940,416.71/1,298,172.29 = 634,906.86/x
  3. Step 3: Cross multiply
    940,416.71x = 1,298,172.29 × 634,906.86
  4. Step 4: Simplify right side
    940,416.71x = 824,218,489,208.38
  5. Step 5: Solve for x
    x = 824,218,489,208.38/940,416.71
  6. Step 6: Final answer
    x = 876,439.65

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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.