Home / 864,009.70-1,296,014.55-486,096.10

Finding the Fourth Proportional to 864,009.70, 1,296,014.55 and 486,096.10

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Solution

The fourth proportional to 864,009.70, 1,296,014.55 and 486,096.10 is: 729,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,009.70 : 1,296,014.55 = 486,096.10 : x
  2. Step 2: Convert to fraction form
    864,009.70/1,296,014.55 = 486,096.10/x
  3. Step 3: Cross multiply
    864,009.70x = 1,296,014.55 × 486,096.10
  4. Step 4: Simplify right side
    864,009.70x = 629,987,618,298.26
  5. Step 5: Solve for x
    x = 629,987,618,298.26/864,009.70
  6. Step 6: Final answer
    x = 729,144.15

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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.