Home / 711,806.43-982,292.95-389,516.59

Finding the Fourth Proportional to 711,806.43, 982,292.95 and 389,516.59

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Solution

The fourth proportional to 711,806.43, 982,292.95 and 389,516.59 is: 537,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,806.43 : 982,292.95 = 389,516.59 : x
  2. Step 2: Convert to fraction form
    711,806.43/982,292.95 = 389,516.59/x
  3. Step 3: Cross multiply
    711,806.43x = 982,292.95 × 389,516.59
  4. Step 4: Simplify right side
    711,806.43x = 382,619,400,265.04
  5. Step 5: Solve for x
    x = 382,619,400,265.04/711,806.43
  6. Step 6: Final answer
    x = 537,532.94

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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.