Home / 711,784.44-982,238.94-389,472.84

Finding the Fourth Proportional to 711,784.44, 982,238.94 and 389,472.84

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Solution

The fourth proportional to 711,784.44, 982,238.94 and 389,472.84 is: 537,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,784.44 : 982,238.94 = 389,472.84 : x
  2. Step 2: Convert to fraction form
    711,784.44/982,238.94 = 389,472.84/x
  3. Step 3: Cross multiply
    711,784.44x = 982,238.94 × 389,472.84
  4. Step 4: Simplify right side
    711,784.44x = 382,555,389,520.39
  5. Step 5: Solve for x
    x = 382,555,389,520.39/711,784.44
  6. Step 6: Final answer
    x = 537,459.61

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Double scale
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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.