Home / 520,025.40-779,649.30-220,260.60

Finding the Fourth Proportional to 520,025.40, 779,649.30 and 220,260.60

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Solution

The fourth proportional to 520,025.40, 779,649.30 and 220,260.60 is: 330,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,025.40 : 779,649.30 = 220,260.60 : x
  2. Step 2: Convert to fraction form
    520,025.40/779,649.30 = 220,260.60/x
  3. Step 3: Cross multiply
    520,025.40x = 779,649.30 × 220,260.60
  4. Step 4: Simplify right side
    520,025.40x = 171,726,022,607.58
  5. Step 5: Solve for x
    x = 171,726,022,607.58/520,025.40
  6. Step 6: Final answer
    x = 330,226.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.