Home / 513,138.96-708,110.85-283,681.65

Finding the Fourth Proportional to 513,138.96, 708,110.85 and 283,681.65

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Solution

The fourth proportional to 513,138.96, 708,110.85 and 283,681.65 is: 391,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,138.96 : 708,110.85 = 283,681.65 : x
  2. Step 2: Convert to fraction form
    513,138.96/708,110.85 = 283,681.65/x
  3. Step 3: Cross multiply
    513,138.96x = 708,110.85 × 283,681.65
  4. Step 4: Simplify right side
    513,138.96x = 200,878,050,770.35
  5. Step 5: Solve for x
    x = 200,878,050,770.35/513,138.96
  6. Step 6: Final answer
    x = 391,469.11

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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.