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Finding the Fourth Proportional to 1,068,090, 1,473,965.64 and 665,682

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Solution

The fourth proportional to 1,068,090, 1,473,965.64 and 665,682 is: 918,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,090 : 1,473,965.64 = 665,682 : x
  2. Step 2: Convert to fraction form
    1,068,090/1,473,965.64 = 665,682/x
  3. Step 3: Cross multiply
    1,068,090x = 1,473,965.64 × 665,682
  4. Step 4: Simplify right side
    1,068,090x = 981,192,395,166.48
  5. Step 5: Solve for x
    x = 981,192,395,166.48/1,068,090
  6. Step 6: Final answer
    x = 918,642.06

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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.