Home / 808,286.40-1,115,501.64-445,781.16

Finding the Fourth Proportional to 808,286.40, 1,115,501.64 and 445,781.16

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Solution

The fourth proportional to 808,286.40, 1,115,501.64 and 445,781.16 is: 615,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,286.40 : 1,115,501.64 = 445,781.16 : x
  2. Step 2: Convert to fraction form
    808,286.40/1,115,501.64 = 445,781.16/x
  3. Step 3: Cross multiply
    808,286.40x = 1,115,501.64 × 445,781.16
  4. Step 4: Simplify right side
    808,286.40x = 497,269,615,061.10
  5. Step 5: Solve for x
    x = 497,269,615,061.10/808,286.40
  6. Step 6: Final answer
    x = 615,214.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.