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Finding the Fourth Proportional to 666,092.40, 919,205.40 and 360,166.68

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Solution

The fourth proportional to 666,092.40, 919,205.40 and 360,166.68 is: 497,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,092.40 : 919,205.40 = 360,166.68 : x
  2. Step 2: Convert to fraction form
    666,092.40/919,205.40 = 360,166.68/x
  3. Step 3: Cross multiply
    666,092.40x = 919,205.40 × 360,166.68
  4. Step 4: Simplify right side
    666,092.40x = 331,067,157,156.07
  5. Step 5: Solve for x
    x = 331,067,157,156.07/666,092.40
  6. Step 6: Final answer
    x = 497,028.88

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1.5x scale

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.