Home / 1,518,671-2,278,137.72-396,740

Finding the Fourth Proportional to 1,518,671, 2,278,137.72 and 396,740

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Solution

The fourth proportional to 1,518,671, 2,278,137.72 and 396,740 is: 595,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,671 : 2,278,137.72 = 396,740 : x
  2. Step 2: Convert to fraction form
    1,518,671/2,278,137.72 = 396,740/x
  3. Step 3: Cross multiply
    1,518,671x = 2,278,137.72 × 396,740
  4. Step 4: Simplify right side
    1,518,671x = 903,828,359,032.80
  5. Step 5: Solve for x
    x = 903,828,359,032.80/1,518,671
  6. Step 6: Final answer
    x = 595,144.28

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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.