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Finding the Fourth Proportional to 896,321.20, 1,345,000.20 and 335,412.40

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Solution

The fourth proportional to 896,321.20, 1,345,000.20 and 335,412.40 is: 503,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,321.20 : 1,345,000.20 = 335,412.40 : x
  2. Step 2: Convert to fraction form
    896,321.20/1,345,000.20 = 335,412.40/x
  3. Step 3: Cross multiply
    896,321.20x = 1,345,000.20 × 335,412.40
  4. Step 4: Simplify right side
    896,321.20x = 451,129,745,082.48
  5. Step 5: Solve for x
    x = 451,129,745,082.48/896,321.20
  6. Step 6: Final answer
    x = 503,312.59

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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.