Home / 1,205,099.21-1,663,088.98-721,572.03

Finding the Fourth Proportional to 1,205,099.21, 1,663,088.98 and 721,572.03

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Solution

The fourth proportional to 1,205,099.21, 1,663,088.98 and 721,572.03 is: 995,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,099.21 : 1,663,088.98 = 721,572.03 : x
  2. Step 2: Convert to fraction form
    1,205,099.21/1,663,088.98 = 721,572.03/x
  3. Step 3: Cross multiply
    1,205,099.21x = 1,663,088.98 × 721,572.03
  4. Step 4: Simplify right side
    1,205,099.21x = 1,200,038,491,369.23
  5. Step 5: Solve for x
    x = 1,200,038,491,369.23/1,205,099.21
  6. Step 6: Final answer
    x = 995,800.58

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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.