Home / 995,403.60-1,492,740.90-321,661.80

Finding the Fourth Proportional to 995,403.60, 1,492,740.90 and 321,661.80

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Solution

The fourth proportional to 995,403.60, 1,492,740.90 and 321,661.80 is: 482,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,403.60 : 1,492,740.90 = 321,661.80 : x
  2. Step 2: Convert to fraction form
    995,403.60/1,492,740.90 = 321,661.80/x
  3. Step 3: Cross multiply
    995,403.60x = 1,492,740.90 × 321,661.80
  4. Step 4: Simplify right side
    995,403.60x = 480,157,724,827.62
  5. Step 5: Solve for x
    x = 480,157,724,827.62/995,403.60
  6. Step 6: Final answer
    x = 482,374.91

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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.