Home / 828,130.40-1,242,195.60-295,668.80

Finding the Fourth Proportional to 828,130.40, 1,242,195.60 and 295,668.80

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Solution

The fourth proportional to 828,130.40, 1,242,195.60 and 295,668.80 is: 443,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,130.40 : 1,242,195.60 = 295,668.80 : x
  2. Step 2: Convert to fraction form
    828,130.40/1,242,195.60 = 295,668.80/x
  3. Step 3: Cross multiply
    828,130.40x = 1,242,195.60 × 295,668.80
  4. Step 4: Simplify right side
    828,130.40x = 367,278,482,417.28
  5. Step 5: Solve for x
    x = 367,278,482,417.28/828,130.40
  6. Step 6: Final answer
    x = 443,503.20

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Similar ratio
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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.