Home / 711,610.07-982,032.96-389,325.56

Finding the Fourth Proportional to 711,610.07, 982,032.96 and 389,325.56

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Solution

The fourth proportional to 711,610.07, 982,032.96 and 389,325.56 is: 537,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,610.07 : 982,032.96 = 389,325.56 : x
  2. Step 2: Convert to fraction form
    711,610.07/982,032.96 = 389,325.56/x
  3. Step 3: Cross multiply
    711,610.07x = 982,032.96 × 389,325.56
  4. Step 4: Simplify right side
    711,610.07x = 382,330,527,180.29
  5. Step 5: Solve for x
    x = 382,330,527,180.29/711,610.07
  6. Step 6: Final answer
    x = 537,275.32

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1.5x scale

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.