Home / 1,980,985.95-2,728,863.68-1,689,648.39

Finding the Fourth Proportional to 1,980,985.95, 2,728,863.68 and 1,689,648.39

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Solution

The fourth proportional to 1,980,985.95, 2,728,863.68 and 1,689,648.39 is: 2,327,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,985.95 : 2,728,863.68 = 1,689,648.39 : x
  2. Step 2: Convert to fraction form
    1,980,985.95/2,728,863.68 = 1,689,648.39/x
  3. Step 3: Cross multiply
    1,980,985.95x = 2,728,863.68 × 1,689,648.39
  4. Step 4: Simplify right side
    1,980,985.95x = 4,610,820,114,993.23
  5. Step 5: Solve for x
    x = 4,610,820,114,993.23/1,980,985.95
  6. Step 6: Final answer
    x = 2,327,538.02

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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.