Home / 563,612.45-777,769.09-321,890.02

Finding the Fourth Proportional to 563,612.45, 777,769.09 and 321,890.02

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Solution

The fourth proportional to 563,612.45, 777,769.09 and 321,890.02 is: 444,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,612.45 : 777,769.09 = 321,890.02 : x
  2. Step 2: Convert to fraction form
    563,612.45/777,769.09 = 321,890.02/x
  3. Step 3: Cross multiply
    563,612.45x = 777,769.09 × 321,890.02
  4. Step 4: Simplify right side
    563,612.45x = 250,356,105,186.33
  5. Step 5: Solve for x
    x = 250,356,105,186.33/563,612.45
  6. Step 6: Final answer
    x = 444,199.04

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1.5x scale

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.