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Finding the Fourth Proportional to 1,565,810, 2,160,817.80 and 850,418

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Solution

The fourth proportional to 1,565,810, 2,160,817.80 and 850,418 is: 1,173,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,810 : 2,160,817.80 = 850,418 : x
  2. Step 2: Convert to fraction form
    1,565,810/2,160,817.80 = 850,418/x
  3. Step 3: Cross multiply
    1,565,810x = 2,160,817.80 × 850,418
  4. Step 4: Simplify right side
    1,565,810x = 1,837,598,351,840.40
  5. Step 5: Solve for x
    x = 1,837,598,351,840.40/1,565,810
  6. Step 6: Final answer
    x = 1,173,576.84

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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.