Home / 1,393,403.60-2,090,105.40-1,180,827.20

Finding the Fourth Proportional to 1,393,403.60, 2,090,105.40 and 1,180,827.20

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Solution

The fourth proportional to 1,393,403.60, 2,090,105.40 and 1,180,827.20 is: 1,771,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,403.60 : 2,090,105.40 = 1,180,827.20 : x
  2. Step 2: Convert to fraction form
    1,393,403.60/2,090,105.40 = 1,180,827.20/x
  3. Step 3: Cross multiply
    1,393,403.60x = 2,090,105.40 × 1,180,827.20
  4. Step 4: Simplify right side
    1,393,403.60x = 2,468,053,307,186.88
  5. Step 5: Solve for x
    x = 2,468,053,307,186.88/1,393,403.60
  6. Step 6: Final answer
    x = 1,771,240.80

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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.