Home / 1,231,761.69-1,847,693.40-422,702.19

Finding the Fourth Proportional to 1,231,761.69, 1,847,693.40 and 422,702.19

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Solution

The fourth proportional to 1,231,761.69, 1,847,693.40 and 422,702.19 is: 634,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,761.69 : 1,847,693.40 = 422,702.19 : x
  2. Step 2: Convert to fraction form
    1,231,761.69/1,847,693.40 = 422,702.19/x
  3. Step 3: Cross multiply
    1,231,761.69x = 1,847,693.40 × 422,702.19
  4. Step 4: Simplify right side
    1,231,761.69x = 781,024,046,628.55
  5. Step 5: Solve for x
    x = 781,024,046,628.55/1,231,761.69
  6. Step 6: Final answer
    x = 634,070.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.