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Finding the Fourth Proportional to 540,127.20, 810,190.80 and 330,002.40

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Solution

The fourth proportional to 540,127.20, 810,190.80 and 330,002.40 is: 495,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,127.20 : 810,190.80 = 330,002.40 : x
  2. Step 2: Convert to fraction form
    540,127.20/810,190.80 = 330,002.40/x
  3. Step 3: Cross multiply
    540,127.20x = 810,190.80 × 330,002.40
  4. Step 4: Simplify right side
    540,127.20x = 267,364,908,457.92
  5. Step 5: Solve for x
    x = 267,364,908,457.92/540,127.20
  6. Step 6: Final answer
    x = 495,003.60

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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.