Home / 808,361.10-1,115,522.79-445,818.47

Finding the Fourth Proportional to 808,361.10, 1,115,522.79 and 445,818.47

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Solution

The fourth proportional to 808,361.10, 1,115,522.79 and 445,818.47 is: 615,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,361.10 : 1,115,522.79 = 445,818.47 : x
  2. Step 2: Convert to fraction form
    808,361.10/1,115,522.79 = 445,818.47/x
  3. Step 3: Cross multiply
    808,361.10x = 1,115,522.79 × 445,818.47
  4. Step 4: Simplify right side
    808,361.10x = 497,320,663,487.93
  5. Step 5: Solve for x
    x = 497,320,663,487.93/808,361.10
  6. Step 6: Final answer
    x = 615,220.92

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1.5x scale

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.