Home / 563,043.60-776,991.39-321,319.95

Finding the Fourth Proportional to 563,043.60, 776,991.39 and 321,319.95

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Solution

The fourth proportional to 563,043.60, 776,991.39 and 321,319.95 is: 443,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,043.60 : 776,991.39 = 321,319.95 : x
  2. Step 2: Convert to fraction form
    563,043.60/776,991.39 = 321,319.95/x
  3. Step 3: Cross multiply
    563,043.60x = 776,991.39 × 321,319.95
  4. Step 4: Simplify right side
    563,043.60x = 249,662,834,585.23
  5. Step 5: Solve for x
    x = 249,662,834,585.23/563,043.60
  6. Step 6: Final answer
    x = 443,416.52

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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.