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Finding the Fourth Proportional to 659,056.57, 988,575.62 and 259,700.81

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Solution

The fourth proportional to 659,056.57, 988,575.62 and 259,700.81 is: 389,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,056.57 : 988,575.62 = 259,700.81 : x
  2. Step 2: Convert to fraction form
    659,056.57/988,575.62 = 259,700.81/x
  3. Step 3: Cross multiply
    659,056.57x = 988,575.62 × 259,700.81
  4. Step 4: Simplify right side
    659,056.57x = 256,733,887,961.75
  5. Step 5: Solve for x
    x = 256,733,887,961.75/659,056.57
  6. Step 6: Final answer
    x = 389,547.58

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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.