Home / 1,122,619.62-1,549,216.60-639,184.98

Finding the Fourth Proportional to 1,122,619.62, 1,549,216.60 and 639,184.98

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Solution

The fourth proportional to 1,122,619.62, 1,549,216.60 and 639,184.98 is: 882,076.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,619.62 : 1,549,216.60 = 639,184.98 : x
  2. Step 2: Convert to fraction form
    1,122,619.62/1,549,216.60 = 639,184.98/x
  3. Step 3: Cross multiply
    1,122,619.62x = 1,549,216.60 × 639,184.98
  4. Step 4: Simplify right side
    1,122,619.62x = 990,235,981,486.67
  5. Step 5: Solve for x
    x = 990,235,981,486.67/1,122,619.62
  6. Step 6: Final answer
    x = 882,076.14

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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.