Home / 1,297,286.42-1,945,929.64-386,482.74

Finding the Fourth Proportional to 1,297,286.42, 1,945,929.64 and 386,482.74

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Solution

The fourth proportional to 1,297,286.42, 1,945,929.64 and 386,482.74 is: 579,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,286.42 : 1,945,929.64 = 386,482.74 : x
  2. Step 2: Convert to fraction form
    1,297,286.42/1,945,929.64 = 386,482.74/x
  3. Step 3: Cross multiply
    1,297,286.42x = 1,945,929.64 × 386,482.74
  4. Step 4: Simplify right side
    1,297,286.42x = 752,068,219,114.41
  5. Step 5: Solve for x
    x = 752,068,219,114.41/1,297,286.42
  6. Step 6: Final answer
    x = 579,724.11

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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.