Home / 486,199.18-670,889.99-282,247.76

Finding the Fourth Proportional to 486,199.18, 670,889.99 and 282,247.76

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Solution

The fourth proportional to 486,199.18, 670,889.99 and 282,247.76 is: 389,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,199.18 : 670,889.99 = 282,247.76 : x
  2. Step 2: Convert to fraction form
    486,199.18/670,889.99 = 282,247.76/x
  3. Step 3: Cross multiply
    486,199.18x = 670,889.99 × 282,247.76
  4. Step 4: Simplify right side
    486,199.18x = 189,357,195,493.01
  5. Step 5: Solve for x
    x = 189,357,195,493.01/486,199.18
  6. Step 6: Final answer
    x = 389,464.25

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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.