Home / 985,492.82-1,359,491.18-636,513.24

Finding the Fourth Proportional to 985,492.82, 1,359,491.18 and 636,513.24

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Solution

The fourth proportional to 985,492.82, 1,359,491.18 and 636,513.24 is: 878,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,492.82 : 1,359,491.18 = 636,513.24 : x
  2. Step 2: Convert to fraction form
    985,492.82/1,359,491.18 = 636,513.24/x
  3. Step 3: Cross multiply
    985,492.82x = 1,359,491.18 × 636,513.24
  4. Step 4: Simplify right side
    985,492.82x = 865,334,135,733.22
  5. Step 5: Solve for x
    x = 865,334,135,733.22/985,492.82
  6. Step 6: Final answer
    x = 878,072.49

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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.