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Finding the Fourth Proportional to 520,041.40, 779,673.30 and 220,276.60

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Solution

The fourth proportional to 520,041.40, 779,673.30 and 220,276.60 is: 330,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,041.40 : 779,673.30 = 220,276.60 : x
  2. Step 2: Convert to fraction form
    520,041.40/779,673.30 = 220,276.60/x
  3. Step 3: Cross multiply
    520,041.40x = 779,673.30 × 220,276.60
  4. Step 4: Simplify right side
    520,041.40x = 171,743,783,634.78
  5. Step 5: Solve for x
    x = 171,743,783,634.78/520,041.40
  6. Step 6: Final answer
    x = 330,250.21

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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.