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Finding the Fourth Proportional to 461,950.20, 637,685.62 and 280,720.34

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Solution

The fourth proportional to 461,950.20, 637,685.62 and 280,720.34 is: 387,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,950.20 : 637,685.62 = 280,720.34 : x
  2. Step 2: Convert to fraction form
    461,950.20/637,685.62 = 280,720.34/x
  3. Step 3: Cross multiply
    461,950.20x = 637,685.62 × 280,720.34
  4. Step 4: Simplify right side
    461,950.20x = 179,011,324,059.51
  5. Step 5: Solve for x
    x = 179,011,324,059.51/461,950.20
  6. Step 6: Final answer
    x = 387,512.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.