Home / 864,010.30-1,296,015.45-486,096.70

Finding the Fourth Proportional to 864,010.30, 1,296,015.45 and 486,096.70

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Solution

The fourth proportional to 864,010.30, 1,296,015.45 and 486,096.70 is: 729,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,010.30 : 1,296,015.45 = 486,096.70 : x
  2. Step 2: Convert to fraction form
    864,010.30/1,296,015.45 = 486,096.70/x
  3. Step 3: Cross multiply
    864,010.30x = 1,296,015.45 × 486,096.70
  4. Step 4: Simplify right side
    864,010.30x = 629,988,833,394.02
  5. Step 5: Solve for x
    x = 629,988,833,394.02/864,010.30
  6. Step 6: Final answer
    x = 729,145.05

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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.