Home / 397,637.85-596,719.22-210,780.57

Finding the Fourth Proportional to 397,637.85, 596,719.22 and 210,780.57

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Solution

The fourth proportional to 397,637.85, 596,719.22 and 210,780.57 is: 316,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,637.85 : 596,719.22 = 210,780.57 : x
  2. Step 2: Convert to fraction form
    397,637.85/596,719.22 = 210,780.57/x
  3. Step 3: Cross multiply
    397,637.85x = 596,719.22 × 210,780.57
  4. Step 4: Simplify right side
    397,637.85x = 125,776,819,690.99
  5. Step 5: Solve for x
    x = 125,776,819,690.99/397,637.85
  6. Step 6: Final answer
    x = 316,309.98

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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.