Home / 1,208,258.19-1,667,339.22-664,416.90

Finding the Fourth Proportional to 1,208,258.19, 1,667,339.22 and 664,416.90

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Solution

The fourth proportional to 1,208,258.19, 1,667,339.22 and 664,416.90 is: 916,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,258.19 : 1,667,339.22 = 664,416.90 : x
  2. Step 2: Convert to fraction form
    1,208,258.19/1,667,339.22 = 664,416.90/x
  3. Step 3: Cross multiply
    1,208,258.19x = 1,667,339.22 × 664,416.90
  4. Step 4: Simplify right side
    1,208,258.19x = 1,107,808,355,800.82
  5. Step 5: Solve for x
    x = 1,107,808,355,800.82/1,208,258.19
  6. Step 6: Final answer
    x = 916,863.93

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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.