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Finding the Fourth Proportional to 457,696.60, 631,658.72 and 253,811.46

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Solution

The fourth proportional to 457,696.60, 631,658.72 and 253,811.46 is: 350,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,696.60 : 631,658.72 = 253,811.46 : x
  2. Step 2: Convert to fraction form
    457,696.60/631,658.72 = 253,811.46/x
  3. Step 3: Cross multiply
    457,696.60x = 631,658.72 × 253,811.46
  4. Step 4: Simplify right side
    457,696.60x = 160,322,224,948.18
  5. Step 5: Solve for x
    x = 160,322,224,948.18/457,696.60
  6. Step 6: Final answer
    x = 350,280.57

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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.