Home / 517,462.14-776,138.67-138,421.17

Finding the Fourth Proportional to 517,462.14, 776,138.67 and 138,421.17

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Solution

The fourth proportional to 517,462.14, 776,138.67 and 138,421.17 is: 207,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,462.14 : 776,138.67 = 138,421.17 : x
  2. Step 2: Convert to fraction form
    517,462.14/776,138.67 = 138,421.17/x
  3. Step 3: Cross multiply
    517,462.14x = 776,138.67 × 138,421.17
  4. Step 4: Simplify right side
    517,462.14x = 107,434,022,783.64
  5. Step 5: Solve for x
    x = 107,434,022,783.64/517,462.14
  6. Step 6: Final answer
    x = 207,617.17

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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.