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Finding the Fourth Proportional to 876,451.68, 1,314,874.44 and 277,448.78

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Solution

The fourth proportional to 876,451.68, 1,314,874.44 and 277,448.78 is: 416,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,451.68 : 1,314,874.44 = 277,448.78 : x
  2. Step 2: Convert to fraction form
    876,451.68/1,314,874.44 = 277,448.78/x
  3. Step 3: Cross multiply
    876,451.68x = 1,314,874.44 × 277,448.78
  4. Step 4: Simplify right side
    876,451.68x = 364,810,302,656.81
  5. Step 5: Solve for x
    x = 364,810,302,656.81/876,451.68
  6. Step 6: Final answer
    x = 416,235.50

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1.5x scale

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.