Home / 1,208,258.60-1,667,339.78-664,417.31

Finding the Fourth Proportional to 1,208,258.60, 1,667,339.78 and 664,417.31

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Solution

The fourth proportional to 1,208,258.60, 1,667,339.78 and 664,417.31 is: 916,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,258.60 : 1,667,339.78 = 664,417.31 : x
  2. Step 2: Convert to fraction form
    1,208,258.60/1,667,339.78 = 664,417.31/x
  3. Step 3: Cross multiply
    1,208,258.60x = 1,667,339.78 × 664,417.31
  4. Step 4: Simplify right side
    1,208,258.60x = 1,107,809,402,316.37
  5. Step 5: Solve for x
    x = 1,107,809,402,316.37/1,208,258.60
  6. Step 6: Final answer
    x = 916,864.49

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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.