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Finding the Fourth Proportional to 540,066.20, 810,002.10 and 340,028.60

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Solution

The fourth proportional to 540,066.20, 810,002.10 and 340,028.60 is: 509,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,066.20 : 810,002.10 = 340,028.60 : x
  2. Step 2: Convert to fraction form
    540,066.20/810,002.10 = 340,028.60/x
  3. Step 3: Cross multiply
    540,066.20x = 810,002.10 × 340,028.60
  4. Step 4: Simplify right side
    540,066.20x = 275,423,880,060.06
  5. Step 5: Solve for x
    x = 275,423,880,060.06/540,066.20
  6. Step 6: Final answer
    x = 509,981.70

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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.