Home / 2,138,036-2,950,537.32-1,220,246.72

Finding the Fourth Proportional to 2,138,036, 2,950,537.32 and 1,220,246.72

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Solution

The fourth proportional to 2,138,036, 2,950,537.32 and 1,220,246.72 is: 1,683,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,036 : 2,950,537.32 = 1,220,246.72 : x
  2. Step 2: Convert to fraction form
    2,138,036/2,950,537.32 = 1,220,246.72/x
  3. Step 3: Cross multiply
    2,138,036x = 2,950,537.32 × 1,220,246.72
  4. Step 4: Simplify right side
    2,138,036x = 3,600,383,486,967.59
  5. Step 5: Solve for x
    x = 3,600,383,486,967.59/2,138,036
  6. Step 6: Final answer
    x = 1,683,967.66

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1.5x scale

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.