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Finding the Fourth Proportional to 664,205.60, 995,287.80 and 494,931.80

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Solution

The fourth proportional to 664,205.60, 995,287.80 and 494,931.80 is: 741,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,205.60 : 995,287.80 = 494,931.80 : x
  2. Step 2: Convert to fraction form
    664,205.60/995,287.80 = 494,931.80/x
  3. Step 3: Cross multiply
    664,205.60x = 995,287.80 × 494,931.80
  4. Step 4: Simplify right side
    664,205.60x = 492,599,582,372.04
  5. Step 5: Solve for x
    x = 492,599,582,372.04/664,205.60
  6. Step 6: Final answer
    x = 741,637.20

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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.