Home / 659,113.20-988,475.40-259,621.20

Finding the Fourth Proportional to 659,113.20, 988,475.40 and 259,621.20

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Solution

The fourth proportional to 659,113.20, 988,475.40 and 259,621.20 is: 389,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,113.20 : 988,475.40 = 259,621.20 : x
  2. Step 2: Convert to fraction form
    659,113.20/988,475.40 = 259,621.20/x
  3. Step 3: Cross multiply
    659,113.20x = 988,475.40 × 259,621.20
  4. Step 4: Simplify right side
    659,113.20x = 256,629,169,518.48
  5. Step 5: Solve for x
    x = 256,629,169,518.48/659,113.20
  6. Step 6: Final answer
    x = 389,355.23

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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.