Home / 711,806.52-982,293.09-389,516.69

Finding the Fourth Proportional to 711,806.52, 982,293.09 and 389,516.69

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Solution

The fourth proportional to 711,806.52, 982,293.09 and 389,516.69 is: 537,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,806.52 : 982,293.09 = 389,516.69 : x
  2. Step 2: Convert to fraction form
    711,806.52/982,293.09 = 389,516.69/x
  3. Step 3: Cross multiply
    711,806.52x = 982,293.09 × 389,516.69
  4. Step 4: Simplify right side
    711,806.52x = 382,619,546,167.62
  5. Step 5: Solve for x
    x = 382,619,546,167.62/711,806.52
  6. Step 6: Final answer
    x = 537,533.07

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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.