Home / 808,393.32-1,115,589.78-445,830.12

Finding the Fourth Proportional to 808,393.32, 1,115,589.78 and 445,830.12

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Solution

The fourth proportional to 808,393.32, 1,115,589.78 and 445,830.12 is: 615,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,393.32 : 1,115,589.78 = 445,830.12 : x
  2. Step 2: Convert to fraction form
    808,393.32/1,115,589.78 = 445,830.12/x
  3. Step 3: Cross multiply
    808,393.32x = 1,115,589.78 × 445,830.12
  4. Step 4: Simplify right side
    808,393.32x = 497,363,525,488.17
  5. Step 5: Solve for x
    x = 497,363,525,488.17/808,393.32
  6. Step 6: Final answer
    x = 615,249.43

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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.