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Finding the Fourth Proportional to 492,772.40, 740,713.80 and 455,447.60

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Solution

The fourth proportional to 492,772.40, 740,713.80 and 455,447.60 is: 684,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,772.40 : 740,713.80 = 455,447.60 : x
  2. Step 2: Convert to fraction form
    492,772.40/740,713.80 = 455,447.60/x
  3. Step 3: Cross multiply
    492,772.40x = 740,713.80 × 455,447.60
  4. Step 4: Simplify right side
    492,772.40x = 337,356,322,496.88
  5. Step 5: Solve for x
    x = 337,356,322,496.88/492,772.40
  6. Step 6: Final answer
    x = 684,608.80

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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.