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Finding the Fourth Proportional to 619,903.80, 929,080.80 and 264,502.80

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Solution

The fourth proportional to 619,903.80, 929,080.80 and 264,502.80 is: 396,423.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,903.80 : 929,080.80 = 264,502.80 : x
  2. Step 2: Convert to fraction form
    619,903.80/929,080.80 = 264,502.80/x
  3. Step 3: Cross multiply
    619,903.80x = 929,080.80 × 264,502.80
  4. Step 4: Simplify right side
    619,903.80x = 245,744,473,026.24
  5. Step 5: Solve for x
    x = 245,744,473,026.24/619,903.80
  6. Step 6: Final answer
    x = 396,423.56

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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.