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Finding the Fourth Proportional to 540,082.20, 808,568.10 and 330,130.20

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Solution

The fourth proportional to 540,082.20, 808,568.10 and 330,130.20 is: 494,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,082.20 : 808,568.10 = 330,130.20 : x
  2. Step 2: Convert to fraction form
    540,082.20/808,568.10 = 330,130.20/x
  3. Step 3: Cross multiply
    540,082.20x = 808,568.10 × 330,130.20
  4. Step 4: Simplify right side
    540,082.20x = 266,932,748,566.62
  5. Step 5: Solve for x
    x = 266,932,748,566.62/540,082.20
  6. Step 6: Final answer
    x = 494,244.67

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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.