Home / 1,118,378.22-1,543,405.64-634,988.39

Finding the Fourth Proportional to 1,118,378.22, 1,543,405.64 and 634,988.39

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Solution

The fourth proportional to 1,118,378.22, 1,543,405.64 and 634,988.39 is: 876,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,378.22 : 1,543,405.64 = 634,988.39 : x
  2. Step 2: Convert to fraction form
    1,118,378.22/1,543,405.64 = 634,988.39/x
  3. Step 3: Cross multiply
    1,118,378.22x = 1,543,405.64 × 634,988.39
  4. Step 4: Simplify right side
    1,118,378.22x = 980,044,651,568.55
  5. Step 5: Solve for x
    x = 980,044,651,568.55/1,118,378.22
  6. Step 6: Final answer
    x = 876,308.78

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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.