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Finding the Fourth Proportional to 490,855.40, 736,283.10 and 277,404.20

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Solution

The fourth proportional to 490,855.40, 736,283.10 and 277,404.20 is: 416,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,855.40 : 736,283.10 = 277,404.20 : x
  2. Step 2: Convert to fraction form
    490,855.40/736,283.10 = 277,404.20/x
  3. Step 3: Cross multiply
    490,855.40x = 736,283.10 × 277,404.20
  4. Step 4: Simplify right side
    490,855.40x = 204,248,024,329.02
  5. Step 5: Solve for x
    x = 204,248,024,329.02/490,855.40
  6. Step 6: Final answer
    x = 416,106.30

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Double scale
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Similar ratio
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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.