Home / 1,211,390.10-1,671,682.05-758,930.58

Finding the Fourth Proportional to 1,211,390.10, 1,671,682.05 and 758,930.58

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Solution

The fourth proportional to 1,211,390.10, 1,671,682.05 and 758,930.58 is: 1,047,301.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,390.10 : 1,671,682.05 = 758,930.58 : x
  2. Step 2: Convert to fraction form
    1,211,390.10/1,671,682.05 = 758,930.58/x
  3. Step 3: Cross multiply
    1,211,390.10x = 1,671,682.05 × 758,930.58
  4. Step 4: Simplify right side
    1,211,390.10x = 1,268,690,627,782.09
  5. Step 5: Solve for x
    x = 1,268,690,627,782.09/1,211,390.10
  6. Step 6: Final answer
    x = 1,047,301.47

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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.