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Finding the Fourth Proportional to 908,774.40, 1,363,226.40 and 277,687.20

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Solution

The fourth proportional to 908,774.40, 1,363,226.40 and 277,687.20 is: 416,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,774.40 : 1,363,226.40 = 277,687.20 : x
  2. Step 2: Convert to fraction form
    908,774.40/1,363,226.40 = 277,687.20/x
  3. Step 3: Cross multiply
    908,774.40x = 1,363,226.40 × 277,687.20
  4. Step 4: Simplify right side
    908,774.40x = 378,550,521,982.08
  5. Step 5: Solve for x
    x = 378,550,521,982.08/908,774.40
  6. Step 6: Final answer
    x = 416,550.60

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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.