Home / 440,849.40-608,378.24-239,649.72

Finding the Fourth Proportional to 440,849.40, 608,378.24 and 239,649.72

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Solution

The fourth proportional to 440,849.40, 608,378.24 and 239,649.72 is: 330,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,849.40 : 608,378.24 = 239,649.72 : x
  2. Step 2: Convert to fraction form
    440,849.40/608,378.24 = 239,649.72/x
  3. Step 3: Cross multiply
    440,849.40x = 608,378.24 × 239,649.72
  4. Step 4: Simplify right side
    440,849.40x = 145,797,674,870.09
  5. Step 5: Solve for x
    x = 145,797,674,870.09/440,849.40
  6. Step 6: Final answer
    x = 330,719.91

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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.