Home / 711,805.92-982,292.27-389,516.09

Finding the Fourth Proportional to 711,805.92, 982,292.27 and 389,516.09

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Solution

The fourth proportional to 711,805.92, 982,292.27 and 389,516.09 is: 537,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,805.92 : 982,292.27 = 389,516.09 : x
  2. Step 2: Convert to fraction form
    711,805.92/982,292.27 = 389,516.09/x
  3. Step 3: Cross multiply
    711,805.92x = 982,292.27 × 389,516.09
  4. Step 4: Simplify right side
    711,805.92x = 382,618,637,388.58
  5. Step 5: Solve for x
    x = 382,618,637,388.58/711,805.92
  6. Step 6: Final answer
    x = 537,532.25

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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.