Home / 804,990.60-1,207,485.90-431,742.60

Finding the Fourth Proportional to 804,990.60, 1,207,485.90 and 431,742.60

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Solution

The fourth proportional to 804,990.60, 1,207,485.90 and 431,742.60 is: 647,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,990.60 : 1,207,485.90 = 431,742.60 : x
  2. Step 2: Convert to fraction form
    804,990.60/1,207,485.90 = 431,742.60/x
  3. Step 3: Cross multiply
    804,990.60x = 1,207,485.90 × 431,742.60
  4. Step 4: Simplify right side
    804,990.60x = 521,323,101,929.34
  5. Step 5: Solve for x
    x = 521,323,101,929.34/804,990.60
  6. Step 6: Final answer
    x = 647,613.90

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Similar ratio
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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.