Home / 1,208,712.60-1,667,988.56-664,848.36

Finding the Fourth Proportional to 1,208,712.60, 1,667,988.56 and 664,848.36

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Solution

The fourth proportional to 1,208,712.60, 1,667,988.56 and 664,848.36 is: 917,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,712.60 : 1,667,988.56 = 664,848.36 : x
  2. Step 2: Convert to fraction form
    1,208,712.60/1,667,988.56 = 664,848.36/x
  3. Step 3: Cross multiply
    1,208,712.60x = 1,667,988.56 × 664,848.36
  4. Step 4: Simplify right side
    1,208,712.60x = 1,108,959,458,614.76
  5. Step 5: Solve for x
    x = 1,108,959,458,614.76/1,208,712.60
  6. Step 6: Final answer
    x = 917,471.58

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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.