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Finding the Fourth Proportional to 540,015.60, 810,023.40 and 440,288.40

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Solution

The fourth proportional to 540,015.60, 810,023.40 and 440,288.40 is: 660,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,015.60 : 810,023.40 = 440,288.40 : x
  2. Step 2: Convert to fraction form
    540,015.60/810,023.40 = 440,288.40/x
  3. Step 3: Cross multiply
    540,015.60x = 810,023.40 × 440,288.40
  4. Step 4: Simplify right side
    540,015.60x = 356,643,906,748.56
  5. Step 5: Solve for x
    x = 356,643,906,748.56/540,015.60
  6. Step 6: Final answer
    x = 660,432.60

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Similar ratio
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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.