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Finding the Fourth Proportional to 467,946, 645,765.84 and 253,085.79

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Solution

The fourth proportional to 467,946, 645,765.84 and 253,085.79 is: 349,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,946 : 645,765.84 = 253,085.79 : x
  2. Step 2: Convert to fraction form
    467,946/645,765.84 = 253,085.79/x
  3. Step 3: Cross multiply
    467,946x = 645,765.84 × 253,085.79
  4. Step 4: Simplify right side
    467,946x = 163,434,157,771.41
  5. Step 5: Solve for x
    x = 163,434,157,771.41/467,946
  6. Step 6: Final answer
    x = 349,258.58

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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.