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Finding the Fourth Proportional to 540,496.40, 810,064.20 and 274,330.40

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Solution

The fourth proportional to 540,496.40, 810,064.20 and 274,330.40 is: 411,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,496.40 : 810,064.20 = 274,330.40 : x
  2. Step 2: Convert to fraction form
    540,496.40/810,064.20 = 274,330.40/x
  3. Step 3: Cross multiply
    540,496.40x = 810,064.20 × 274,330.40
  4. Step 4: Simplify right side
    540,496.40x = 222,225,236,011.68
  5. Step 5: Solve for x
    x = 222,225,236,011.68/540,496.40
  6. Step 6: Final answer
    x = 411,150.26

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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.