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Finding the Fourth Proportional to 469,080.42, 647,330.78 and 254,220.46

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Solution

The fourth proportional to 469,080.42, 647,330.78 and 254,220.46 is: 350,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,080.42 : 647,330.78 = 254,220.46 : x
  2. Step 2: Convert to fraction form
    469,080.42/647,330.78 = 254,220.46/x
  3. Step 3: Cross multiply
    469,080.42x = 647,330.78 × 254,220.46
  4. Step 4: Simplify right side
    469,080.42x = 164,564,728,663.76
  5. Step 5: Solve for x
    x = 164,564,728,663.76/469,080.42
  6. Step 6: Final answer
    x = 350,824.13

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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.