Home / 643,132.94-965,277.59-343,869.32

Finding the Fourth Proportional to 643,132.94, 965,277.59 and 343,869.32

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Solution

The fourth proportional to 643,132.94, 965,277.59 and 343,869.32 is: 516,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,132.94 : 965,277.59 = 343,869.32 : x
  2. Step 2: Convert to fraction form
    643,132.94/965,277.59 = 343,869.32/x
  3. Step 3: Cross multiply
    643,132.94x = 965,277.59 × 343,869.32
  4. Step 4: Simplify right side
    643,132.94x = 331,929,349,178.39
  5. Step 5: Solve for x
    x = 331,929,349,178.39/643,132.94
  6. Step 6: Final answer
    x = 516,113.13

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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.