Home / 3,118,455.75-4,303,468.94-1,687,671.75

Finding the Fourth Proportional to 3,118,455.75, 4,303,468.94 and 1,687,671.75

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Solution

The fourth proportional to 3,118,455.75, 4,303,468.94 and 1,687,671.75 is: 2,328,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,455.75 : 4,303,468.94 = 1,687,671.75 : x
  2. Step 2: Convert to fraction form
    3,118,455.75/4,303,468.94 = 1,687,671.75/x
  3. Step 3: Cross multiply
    3,118,455.75x = 4,303,468.94 × 1,687,671.75
  4. Step 4: Simplify right side
    3,118,455.75x = 7,262,842,948,602.09
  5. Step 5: Solve for x
    x = 7,262,842,948,602.09/3,118,455.75
  6. Step 6: Final answer
    x = 2,328,987.02

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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.