Home / 1,122,622.11-1,549,220.04-639,187.47

Finding the Fourth Proportional to 1,122,622.11, 1,549,220.04 and 639,187.47

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Solution

The fourth proportional to 1,122,622.11, 1,549,220.04 and 639,187.47 is: 882,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,622.11 : 1,549,220.04 = 639,187.47 : x
  2. Step 2: Convert to fraction form
    1,122,622.11/1,549,220.04 = 639,187.47/x
  3. Step 3: Cross multiply
    1,122,622.11x = 1,549,220.04 × 639,187.47
  4. Step 4: Simplify right side
    1,122,622.11x = 990,242,037,840.90
  5. Step 5: Solve for x
    x = 990,242,037,840.90/1,122,622.11
  6. Step 6: Final answer
    x = 882,079.58

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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.