Home / 563,330.20-777,379.32-330,753.22

Finding the Fourth Proportional to 563,330.20, 777,379.32 and 330,753.22

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Solution

The fourth proportional to 563,330.20, 777,379.32 and 330,753.22 is: 456,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,330.20 : 777,379.32 = 330,753.22 : x
  2. Step 2: Convert to fraction form
    563,330.20/777,379.32 = 330,753.22/x
  3. Step 3: Cross multiply
    563,330.20x = 777,379.32 × 330,753.22
  4. Step 4: Simplify right side
    563,330.20x = 257,120,713,251.41
  5. Step 5: Solve for x
    x = 257,120,713,251.41/563,330.20
  6. Step 6: Final answer
    x = 456,429.84

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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.