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Finding the Fourth Proportional to 876,453.32, 1,314,876.90 and 277,450.40

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Solution

The fourth proportional to 876,453.32, 1,314,876.90 and 277,450.40 is: 416,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,453.32 : 1,314,876.90 = 277,450.40 : x
  2. Step 2: Convert to fraction form
    876,453.32/1,314,876.90 = 277,450.40/x
  3. Step 3: Cross multiply
    876,453.32x = 1,314,876.90 × 277,450.40
  4. Step 4: Simplify right side
    876,453.32x = 364,813,121,855.76
  5. Step 5: Solve for x
    x = 364,813,121,855.76/876,453.32
  6. Step 6: Final answer
    x = 416,237.94

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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.