Home / 909,874.58-1,364,762.64-278,790.22

Finding the Fourth Proportional to 909,874.58, 1,364,762.64 and 278,790.22

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Solution

The fourth proportional to 909,874.58, 1,364,762.64 and 278,790.22 is: 418,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,874.58 : 1,364,762.64 = 278,790.22 : x
  2. Step 2: Convert to fraction form
    909,874.58/1,364,762.64 = 278,790.22/x
  3. Step 3: Cross multiply
    909,874.58x = 1,364,762.64 × 278,790.22
  4. Step 4: Simplify right side
    909,874.58x = 380,482,476,653.38
  5. Step 5: Solve for x
    x = 380,482,476,653.38/909,874.58
  6. Step 6: Final answer
    x = 418,170.25

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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.