Home / 563,042.09-776,989.33-321,318.45

Finding the Fourth Proportional to 563,042.09, 776,989.33 and 321,318.45

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Solution

The fourth proportional to 563,042.09, 776,989.33 and 321,318.45 is: 443,414.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,042.09 : 776,989.33 = 321,318.45 : x
  2. Step 2: Convert to fraction form
    563,042.09/776,989.33 = 321,318.45/x
  3. Step 3: Cross multiply
    563,042.09x = 776,989.33 × 321,318.45
  4. Step 4: Simplify right side
    563,042.09x = 249,661,006,378.84
  5. Step 5: Solve for x
    x = 249,661,006,378.84/563,042.09
  6. Step 6: Final answer
    x = 443,414.46

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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.