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Finding the Fourth Proportional to 540,007.60, 810,011.40 and 440,280.40

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Solution

The fourth proportional to 540,007.60, 810,011.40 and 440,280.40 is: 660,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,007.60 : 810,011.40 = 440,280.40 : x
  2. Step 2: Convert to fraction form
    540,007.60/810,011.40 = 440,280.40/x
  3. Step 3: Cross multiply
    540,007.60x = 810,011.40 × 440,280.40
  4. Step 4: Simplify right side
    540,007.60x = 356,632,143,196.56
  5. Step 5: Solve for x
    x = 356,632,143,196.56/540,007.60
  6. Step 6: Final answer
    x = 660,420.60

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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.