Home / 995,448.40-1,493,364.60-426,821.20

Finding the Fourth Proportional to 995,448.40, 1,493,364.60 and 426,821.20

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Solution

The fourth proportional to 995,448.40, 1,493,364.60 and 426,821.20 is: 640,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,448.40 : 1,493,364.60 = 426,821.20 : x
  2. Step 2: Convert to fraction form
    995,448.40/1,493,364.60 = 426,821.20/x
  3. Step 3: Cross multiply
    995,448.40x = 1,493,364.60 × 426,821.20
  4. Step 4: Simplify right side
    995,448.40x = 637,399,670,609.52
  5. Step 5: Solve for x
    x = 637,399,670,609.52/995,448.40
  6. Step 6: Final answer
    x = 640,314.12

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Double scale
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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.