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Finding the Fourth Proportional to 490,682.80, 736,024.20 and 455,253.40

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Solution

The fourth proportional to 490,682.80, 736,024.20 and 455,253.40 is: 682,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,682.80 : 736,024.20 = 455,253.40 : x
  2. Step 2: Convert to fraction form
    490,682.80/736,024.20 = 455,253.40/x
  3. Step 3: Cross multiply
    490,682.80x = 736,024.20 × 455,253.40
  4. Step 4: Simplify right side
    490,682.80x = 335,077,519,532.28
  5. Step 5: Solve for x
    x = 335,077,519,532.28/490,682.80
  6. Step 6: Final answer
    x = 682,880.10

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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.