Home / 659,852.66-989,746.18-386,452.56

Finding the Fourth Proportional to 659,852.66, 989,746.18 and 386,452.56

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Solution

The fourth proportional to 659,852.66, 989,746.18 and 386,452.56 is: 579,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,852.66 : 989,746.18 = 386,452.56 : x
  2. Step 2: Convert to fraction form
    659,852.66/989,746.18 = 386,452.56/x
  3. Step 3: Cross multiply
    659,852.66x = 989,746.18 × 386,452.56
  4. Step 4: Simplify right side
    659,852.66x = 382,489,945,011.22
  5. Step 5: Solve for x
    x = 382,489,945,011.22/659,852.66
  6. Step 6: Final answer
    x = 579,659.62

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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.