Home / 659,331.84-989,403.84-259,904.64

Finding the Fourth Proportional to 659,331.84, 989,403.84 and 259,904.64

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Solution

The fourth proportional to 659,331.84, 989,403.84 and 259,904.64 is: 390,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,331.84 : 989,403.84 = 259,904.64 : x
  2. Step 2: Convert to fraction form
    659,331.84/989,403.84 = 259,904.64/x
  3. Step 3: Cross multiply
    659,331.84x = 989,403.84 × 259,904.64
  4. Step 4: Simplify right side
    659,331.84x = 257,150,648,849.82
  5. Step 5: Solve for x
    x = 257,150,648,849.82/659,331.84
  6. Step 6: Final answer
    x = 390,017.03

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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.