Home / 1,120,656.42-1,680,996.15-321,935.94

Finding the Fourth Proportional to 1,120,656.42, 1,680,996.15 and 321,935.94

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Solution

The fourth proportional to 1,120,656.42, 1,680,996.15 and 321,935.94 is: 482,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,656.42 : 1,680,996.15 = 321,935.94 : x
  2. Step 2: Convert to fraction form
    1,120,656.42/1,680,996.15 = 321,935.94/x
  3. Step 3: Cross multiply
    1,120,656.42x = 1,680,996.15 × 321,935.94
  4. Step 4: Simplify right side
    1,120,656.42x = 541,173,075,686.63
  5. Step 5: Solve for x
    x = 541,173,075,686.63/1,120,656.42
  6. Step 6: Final answer
    x = 482,907.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.