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Finding the Fourth Proportional to 479,284.52, 661,425.30 and 264,427.40

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Solution

The fourth proportional to 479,284.52, 661,425.30 and 264,427.40 is: 364,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,284.52 : 661,425.30 = 264,427.40 : x
  2. Step 2: Convert to fraction form
    479,284.52/661,425.30 = 264,427.40/x
  3. Step 3: Cross multiply
    479,284.52x = 661,425.30 × 264,427.40
  4. Step 4: Simplify right side
    479,284.52x = 174,898,972,373.22
  5. Step 5: Solve for x
    x = 174,898,972,373.22/479,284.52
  6. Step 6: Final answer
    x = 364,916.80

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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.