Home / 808,389.32-1,115,584.26-445,826.12

Finding the Fourth Proportional to 808,389.32, 1,115,584.26 and 445,826.12

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Solution

The fourth proportional to 808,389.32, 1,115,584.26 and 445,826.12 is: 615,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,389.32 : 1,115,584.26 = 445,826.12 : x
  2. Step 2: Convert to fraction form
    808,389.32/1,115,584.26 = 445,826.12/x
  3. Step 3: Cross multiply
    808,389.32x = 1,115,584.26 × 445,826.12
  4. Step 4: Simplify right side
    808,389.32x = 497,356,602,168.87
  5. Step 5: Solve for x
    x = 497,356,602,168.87/808,389.32
  6. Step 6: Final answer
    x = 615,243.91

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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.