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Finding the Fourth Proportional to 479,330.85, 661,476.08 and 264,470.90

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Solution

The fourth proportional to 479,330.85, 661,476.08 and 264,470.90 is: 364,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,330.85 : 661,476.08 = 264,470.90 : x
  2. Step 2: Convert to fraction form
    479,330.85/661,476.08 = 264,470.90/x
  3. Step 3: Cross multiply
    479,330.85x = 661,476.08 × 264,470.90
  4. Step 4: Simplify right side
    479,330.85x = 174,941,174,206.07
  5. Step 5: Solve for x
    x = 174,941,174,206.07/479,330.85
  6. Step 6: Final answer
    x = 364,969.57

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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.