Home / 409,381.04-614,645.40-209,844.56

Finding the Fourth Proportional to 409,381.04, 614,645.40 and 209,844.56

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Solution

The fourth proportional to 409,381.04, 614,645.40 and 209,844.56 is: 315,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,381.04 : 614,645.40 = 209,844.56 : x
  2. Step 2: Convert to fraction form
    409,381.04/614,645.40 = 209,844.56/x
  3. Step 3: Cross multiply
    409,381.04x = 614,645.40 × 209,844.56
  4. Step 4: Simplify right side
    409,381.04x = 128,979,993,519.02
  5. Step 5: Solve for x
    x = 128,979,993,519.02/409,381.04
  6. Step 6: Final answer
    x = 315,060.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.