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Finding the Fourth Proportional to 671,139.88, 926,173.19 and 369,333.88

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Solution

The fourth proportional to 671,139.88, 926,173.19 and 369,333.88 is: 509,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,139.88 : 926,173.19 = 369,333.88 : x
  2. Step 2: Convert to fraction form
    671,139.88/926,173.19 = 369,333.88/x
  3. Step 3: Cross multiply
    671,139.88x = 926,173.19 × 369,333.88
  4. Step 4: Simplify right side
    671,139.88x = 342,067,137,814.68
  5. Step 5: Solve for x
    x = 342,067,137,814.68/671,139.88
  6. Step 6: Final answer
    x = 509,680.84

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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.