Home / 1,438,690.01-2,155,977.61-1,056,612.80

Finding the Fourth Proportional to 1,438,690.01, 2,155,977.61 and 1,056,612.80

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Solution

The fourth proportional to 1,438,690.01, 2,155,977.61 and 1,056,612.80 is: 1,583,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,690.01 : 2,155,977.61 = 1,056,612.80 : x
  2. Step 2: Convert to fraction form
    1,438,690.01/2,155,977.61 = 1,056,612.80/x
  3. Step 3: Cross multiply
    1,438,690.01x = 2,155,977.61 × 1,056,612.80
  4. Step 4: Simplify right side
    1,438,690.01x = 2,278,033,541,987.82
  5. Step 5: Solve for x
    x = 2,278,033,541,987.82/1,438,690.01
  6. Step 6: Final answer
    x = 1,583,408.19

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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.