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Finding the Fourth Proportional to 661,527.92, 992,619.90 and 262,159.86

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Solution

The fourth proportional to 661,527.92, 992,619.90 and 262,159.86 is: 393,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,527.92 : 992,619.90 = 262,159.86 : x
  2. Step 2: Convert to fraction form
    661,527.92/992,619.90 = 262,159.86/x
  3. Step 3: Cross multiply
    661,527.92x = 992,619.90 × 262,159.86
  4. Step 4: Simplify right side
    661,527.92x = 260,225,094,017.21
  5. Step 5: Solve for x
    x = 260,225,094,017.21/661,527.92
  6. Step 6: Final answer
    x = 393,369.78

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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.