Home / 563,100.50-777,091.23-321,378.22

Finding the Fourth Proportional to 563,100.50, 777,091.23 and 321,378.22

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Solution

The fourth proportional to 563,100.50, 777,091.23 and 321,378.22 is: 443,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,100.50 : 777,091.23 = 321,378.22 : x
  2. Step 2: Convert to fraction form
    563,100.50/777,091.23 = 321,378.22/x
  3. Step 3: Cross multiply
    563,100.50x = 777,091.23 × 321,378.22
  4. Step 4: Simplify right side
    563,100.50x = 249,740,196,275.01
  5. Step 5: Solve for x
    x = 249,740,196,275.01/563,100.50
  6. Step 6: Final answer
    x = 443,509.10

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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.