Home / 711,443.03-982,122.24-420,963.26

Finding the Fourth Proportional to 711,443.03, 982,122.24 and 420,963.26

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Solution

The fourth proportional to 711,443.03, 982,122.24 and 420,963.26 is: 581,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,443.03 : 982,122.24 = 420,963.26 : x
  2. Step 2: Convert to fraction form
    711,443.03/982,122.24 = 420,963.26/x
  3. Step 3: Cross multiply
    711,443.03x = 982,122.24 × 420,963.26
  4. Step 4: Simplify right side
    711,443.03x = 413,437,374,958.29
  5. Step 5: Solve for x
    x = 413,437,374,958.29/711,443.03
  6. Step 6: Final answer
    x = 581,125.07

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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.