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Finding the Fourth Proportional to 877,908, 1,211,513.04 and 475,500

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Solution

The fourth proportional to 877,908, 1,211,513.04 and 475,500 is: 656,190

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,908 : 1,211,513.04 = 475,500 : x
  2. Step 2: Convert to fraction form
    877,908/1,211,513.04 = 475,500/x
  3. Step 3: Cross multiply
    877,908x = 1,211,513.04 × 475,500
  4. Step 4: Simplify right side
    877,908x = 576,074,450,520
  5. Step 5: Solve for x
    x = 576,074,450,520/877,908
  6. Step 6: Final answer
    x = 656,190

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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.