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Finding the Fourth Proportional to 520,026.40, 779,650.80 and 220,261.60

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Solution

The fourth proportional to 520,026.40, 779,650.80 and 220,261.60 is: 330,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,026.40 : 779,650.80 = 220,261.60 : x
  2. Step 2: Convert to fraction form
    520,026.40/779,650.80 = 220,261.60/x
  3. Step 3: Cross multiply
    520,026.40x = 779,650.80 × 220,261.60
  4. Step 4: Simplify right side
    520,026.40x = 171,727,132,649.28
  5. Step 5: Solve for x
    x = 171,727,132,649.28/520,026.40
  6. Step 6: Final answer
    x = 330,227.72

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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.