Home / 711,806.18-982,292.61-389,516.35

Finding the Fourth Proportional to 711,806.18, 982,292.61 and 389,516.35

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Solution

The fourth proportional to 711,806.18, 982,292.61 and 389,516.35 is: 537,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,806.18 : 982,292.61 = 389,516.35 : x
  2. Step 2: Convert to fraction form
    711,806.18/982,292.61 = 389,516.35/x
  3. Step 3: Cross multiply
    711,806.18x = 982,292.61 × 389,516.35
  4. Step 4: Simplify right side
    711,806.18x = 382,619,025,220.13
  5. Step 5: Solve for x
    x = 382,619,025,220.13/711,806.18
  6. Step 6: Final answer
    x = 537,532.60

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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.