Home / 634,219.67-874,979.21-404,785.15

Finding the Fourth Proportional to 634,219.67, 874,979.21 and 404,785.15

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Solution

The fourth proportional to 634,219.67, 874,979.21 and 404,785.15 is: 558,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,219.67 : 874,979.21 = 404,785.15 : x
  2. Step 2: Convert to fraction form
    634,219.67/874,979.21 = 404,785.15/x
  3. Step 3: Cross multiply
    634,219.67x = 874,979.21 × 404,785.15
  4. Step 4: Simplify right side
    634,219.67x = 354,178,589,591.25
  5. Step 5: Solve for x
    x = 354,178,589,591.25/634,219.67
  6. Step 6: Final answer
    x = 558,447.81

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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.