Home / 1,390,591.26-2,085,994.71-417,879.60

Finding the Fourth Proportional to 1,390,591.26, 2,085,994.71 and 417,879.60

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Solution

The fourth proportional to 1,390,591.26, 2,085,994.71 and 417,879.60 is: 626,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,591.26 : 2,085,994.71 = 417,879.60 : x
  2. Step 2: Convert to fraction form
    1,390,591.26/2,085,994.71 = 417,879.60/x
  3. Step 3: Cross multiply
    1,390,591.26x = 2,085,994.71 × 417,879.60
  4. Step 4: Simplify right side
    1,390,591.26x = 871,694,635,016.92
  5. Step 5: Solve for x
    x = 871,694,635,016.92/1,390,591.26
  6. Step 6: Final answer
    x = 626,851.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.