Home / 813,682.35-1,219,804.56-307,892.16

Finding the Fourth Proportional to 813,682.35, 1,219,804.56 and 307,892.16

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Solution

The fourth proportional to 813,682.35, 1,219,804.56 and 307,892.16 is: 461,566.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,682.35 : 1,219,804.56 = 307,892.16 : x
  2. Step 2: Convert to fraction form
    813,682.35/1,219,804.56 = 307,892.16/x
  3. Step 3: Cross multiply
    813,682.35x = 1,219,804.56 × 307,892.16
  4. Step 4: Simplify right side
    813,682.35x = 375,568,260,756.25
  5. Step 5: Solve for x
    x = 375,568,260,756.25/813,682.35
  6. Step 6: Final answer
    x = 461,566.19

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Double scale
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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.