Home / 563,014.43-777,015.77-321,333.61

Finding the Fourth Proportional to 563,014.43, 777,015.77 and 321,333.61

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Solution

The fourth proportional to 563,014.43, 777,015.77 and 321,333.61 is: 443,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,014.43 : 777,015.77 = 321,333.61 : x
  2. Step 2: Convert to fraction form
    563,014.43/777,015.77 = 321,333.61/x
  3. Step 3: Cross multiply
    563,014.43x = 777,015.77 × 321,333.61
  4. Step 4: Simplify right side
    563,014.43x = 249,681,278,851.82
  5. Step 5: Solve for x
    x = 249,681,278,851.82/563,014.43
  6. Step 6: Final answer
    x = 443,472.25

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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.