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Finding the Fourth Proportional to 454,455.10, 680,905.05 and 288,048.70

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Solution

The fourth proportional to 454,455.10, 680,905.05 and 288,048.70 is: 431,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,455.10 : 680,905.05 = 288,048.70 : x
  2. Step 2: Convert to fraction form
    454,455.10/680,905.05 = 288,048.70/x
  3. Step 3: Cross multiply
    454,455.10x = 680,905.05 × 288,048.70
  4. Step 4: Simplify right side
    454,455.10x = 196,133,814,475.94
  5. Step 5: Solve for x
    x = 196,133,814,475.94/454,455.10
  6. Step 6: Final answer
    x = 431,580.18

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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.