Home / 1,390,357.60-2,083,786.80-1,232,893.60

Finding the Fourth Proportional to 1,390,357.60, 2,083,786.80 and 1,232,893.60

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Solution

The fourth proportional to 1,390,357.60, 2,083,786.80 and 1,232,893.60 is: 1,847,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,357.60 : 2,083,786.80 = 1,232,893.60 : x
  2. Step 2: Convert to fraction form
    1,390,357.60/2,083,786.80 = 1,232,893.60/x
  3. Step 3: Cross multiply
    1,390,357.60x = 2,083,786.80 × 1,232,893.60
  4. Step 4: Simplify right side
    1,390,357.60x = 2,569,087,409,484.48
  5. Step 5: Solve for x
    x = 2,569,087,409,484.48/1,390,357.60
  6. Step 6: Final answer
    x = 1,847,788.95

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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.