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Finding the Fourth Proportional to 870,677.98, 1,201,469.73 and 488,630.95

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Solution

The fourth proportional to 870,677.98, 1,201,469.73 and 488,630.95 is: 674,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,677.98 : 1,201,469.73 = 488,630.95 : x
  2. Step 2: Convert to fraction form
    870,677.98/1,201,469.73 = 488,630.95/x
  3. Step 3: Cross multiply
    870,677.98x = 1,201,469.73 × 488,630.95
  4. Step 4: Simplify right side
    870,677.98x = 587,075,295,566.14
  5. Step 5: Solve for x
    x = 587,075,295,566.14/870,677.98
  6. Step 6: Final answer
    x = 674,273.74

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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.