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Finding the Fourth Proportional to 513,228.56, 708,226.72 and 283,772.56

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Solution

The fourth proportional to 513,228.56, 708,226.72 and 283,772.56 is: 391,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,228.56 : 708,226.72 = 283,772.56 : x
  2. Step 2: Convert to fraction form
    513,228.56/708,226.72 = 283,772.56/x
  3. Step 3: Cross multiply
    513,228.56x = 708,226.72 × 283,772.56
  4. Step 4: Simplify right side
    513,228.56x = 200,975,309,394.80
  5. Step 5: Solve for x
    x = 200,975,309,394.80/513,228.56
  6. Step 6: Final answer
    x = 391,590.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.