Home / 409,343.04-614,588.40-209,806.56

Finding the Fourth Proportional to 409,343.04, 614,588.40 and 209,806.56

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Solution

The fourth proportional to 409,343.04, 614,588.40 and 209,806.56 is: 315,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,343.04 : 614,588.40 = 209,806.56 : x
  2. Step 2: Convert to fraction form
    409,343.04/614,588.40 = 209,806.56/x
  3. Step 3: Cross multiply
    409,343.04x = 614,588.40 × 209,806.56
  4. Step 4: Simplify right side
    409,343.04x = 128,944,678,019.90
  5. Step 5: Solve for x
    x = 128,944,678,019.90/409,343.04
  6. Step 6: Final answer
    x = 315,003.96

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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.