Home / 804,986.80-1,207,480.20-243,948.40

Finding the Fourth Proportional to 804,986.80, 1,207,480.20 and 243,948.40

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Solution

The fourth proportional to 804,986.80, 1,207,480.20 and 243,948.40 is: 365,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,986.80 : 1,207,480.20 = 243,948.40 : x
  2. Step 2: Convert to fraction form
    804,986.80/1,207,480.20 = 243,948.40/x
  3. Step 3: Cross multiply
    804,986.80x = 1,207,480.20 × 243,948.40
  4. Step 4: Simplify right side
    804,986.80x = 294,562,862,821.68
  5. Step 5: Solve for x
    x = 294,562,862,821.68/804,986.80
  6. Step 6: Final answer
    x = 365,922.60

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Double scale
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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.