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Finding the Fourth Proportional to 659,568.59, 908,960.70 and 528,597.50

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Solution

The fourth proportional to 659,568.59, 908,960.70 and 528,597.50 is: 728,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,568.59 : 908,960.70 = 528,597.50 : x
  2. Step 2: Convert to fraction form
    659,568.59/908,960.70 = 528,597.50/x
  3. Step 3: Cross multiply
    659,568.59x = 908,960.70 × 528,597.50
  4. Step 4: Simplify right side
    659,568.59x = 480,474,351,055.69
  5. Step 5: Solve for x
    x = 480,474,351,055.69/659,568.59
  6. Step 6: Final answer
    x = 728,467.61

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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.