Home / 1,431,983.10-2,147,974.65-1,237,121.40

Finding the Fourth Proportional to 1,431,983.10, 2,147,974.65 and 1,237,121.40

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Solution

The fourth proportional to 1,431,983.10, 2,147,974.65 and 1,237,121.40 is: 1,855,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,983.10 : 2,147,974.65 = 1,237,121.40 : x
  2. Step 2: Convert to fraction form
    1,431,983.10/2,147,974.65 = 1,237,121.40/x
  3. Step 3: Cross multiply
    1,431,983.10x = 2,147,974.65 × 1,237,121.40
  4. Step 4: Simplify right side
    1,431,983.10x = 2,657,305,406,172.51
  5. Step 5: Solve for x
    x = 2,657,305,406,172.51/1,431,983.10
  6. Step 6: Final answer
    x = 1,855,682.10

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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.