Home / 1,801,115.10-2,486,278.28-1,221,132.60

Finding the Fourth Proportional to 1,801,115.10, 2,486,278.28 and 1,221,132.60

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Solution

The fourth proportional to 1,801,115.10, 2,486,278.28 and 1,221,132.60 is: 1,685,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801,115.10 : 2,486,278.28 = 1,221,132.60 : x
  2. Step 2: Convert to fraction form
    1,801,115.10/2,486,278.28 = 1,221,132.60/x
  3. Step 3: Cross multiply
    1,801,115.10x = 2,486,278.28 × 1,221,132.60
  4. Step 4: Simplify right side
    1,801,115.10x = 3,036,075,460,379.93
  5. Step 5: Solve for x
    x = 3,036,075,460,379.93/1,801,115.10
  6. Step 6: Final answer
    x = 1,685,664.32

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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.