Home / 3,678,742.13-5,518,943.60-1,120,185.86

Finding the Fourth Proportional to 3,678,742.13, 5,518,943.60 and 1,120,185.86

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Solution

The fourth proportional to 3,678,742.13, 5,518,943.60 and 1,120,185.86 is: 1,680,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678,742.13 : 5,518,943.60 = 1,120,185.86 : x
  2. Step 2: Convert to fraction form
    3,678,742.13/5,518,943.60 = 1,120,185.86/x
  3. Step 3: Cross multiply
    3,678,742.13x = 5,518,943.60 × 1,120,185.86
  4. Step 4: Simplify right side
    3,678,742.13x = 6,182,242,549,661.85
  5. Step 5: Solve for x
    x = 6,182,242,549,661.85/3,678,742.13
  6. Step 6: Final answer
    x = 1,680,531.64

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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.