Home / 520,261.50-718,019.28-293,921.58

Finding the Fourth Proportional to 520,261.50, 718,019.28 and 293,921.58

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Solution

The fourth proportional to 520,261.50, 718,019.28 and 293,921.58 is: 405,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,261.50 : 718,019.28 = 293,921.58 : x
  2. Step 2: Convert to fraction form
    520,261.50/718,019.28 = 293,921.58/x
  3. Step 3: Cross multiply
    520,261.50x = 718,019.28 × 293,921.58
  4. Step 4: Simplify right side
    520,261.50x = 211,041,361,248.06
  5. Step 5: Solve for x
    x = 211,041,361,248.06/520,261.50
  6. Step 6: Final answer
    x = 405,644.78

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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.