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Finding the Fourth Proportional to 1,662,192, 2,493,702.72 and 480,240

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Solution

The fourth proportional to 1,662,192, 2,493,702.72 and 480,240 is: 720,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,192 : 2,493,702.72 = 480,240 : x
  2. Step 2: Convert to fraction form
    1,662,192/2,493,702.72 = 480,240/x
  3. Step 3: Cross multiply
    1,662,192x = 2,493,702.72 × 480,240
  4. Step 4: Simplify right side
    1,662,192x = 1,197,575,794,252.80
  5. Step 5: Solve for x
    x = 1,197,575,794,252.80/1,662,192
  6. Step 6: Final answer
    x = 720,479.82

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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.