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Finding the Fourth Proportional to 1,068,092, 1,473,968.40 and 665,684

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Solution

The fourth proportional to 1,068,092, 1,473,968.40 and 665,684 is: 918,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,092 : 1,473,968.40 = 665,684 : x
  2. Step 2: Convert to fraction form
    1,068,092/1,473,968.40 = 665,684/x
  3. Step 3: Cross multiply
    1,068,092x = 1,473,968.40 × 665,684
  4. Step 4: Simplify right side
    1,068,092x = 981,197,180,385.60
  5. Step 5: Solve for x
    x = 981,197,180,385.60/1,068,092
  6. Step 6: Final answer
    x = 918,644.82

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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.