Home / 439,903.89-659,867.29-140,384.07

Finding the Fourth Proportional to 439,903.89, 659,867.29 and 140,384.07

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Solution

The fourth proportional to 439,903.89, 659,867.29 and 140,384.07 is: 210,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,903.89 : 659,867.29 = 140,384.07 : x
  2. Step 2: Convert to fraction form
    439,903.89/659,867.29 = 140,384.07/x
  3. Step 3: Cross multiply
    439,903.89x = 659,867.29 × 140,384.07
  4. Step 4: Simplify right side
    439,903.89x = 92,634,855,479.11
  5. Step 5: Solve for x
    x = 92,634,855,479.11/439,903.89
  6. Step 6: Final answer
    x = 210,579.76

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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.