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Finding the Fourth Proportional to 347,841.20, 520,984.20 and 340,065.20

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Solution

The fourth proportional to 347,841.20, 520,984.20 and 340,065.20 is: 509,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,841.20 : 520,984.20 = 340,065.20 : x
  2. Step 2: Convert to fraction form
    347,841.20/520,984.20 = 340,065.20/x
  3. Step 3: Cross multiply
    347,841.20x = 520,984.20 × 340,065.20
  4. Step 4: Simplify right side
    347,841.20x = 177,168,596,169.84
  5. Step 5: Solve for x
    x = 177,168,596,169.84/347,841.20
  6. Step 6: Final answer
    x = 509,337.58

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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.