Home / 1,106,688.80-1,660,033.20-909,858.80

Finding the Fourth Proportional to 1,106,688.80, 1,660,033.20 and 909,858.80

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Solution

The fourth proportional to 1,106,688.80, 1,660,033.20 and 909,858.80 is: 1,364,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,688.80 : 1,660,033.20 = 909,858.80 : x
  2. Step 2: Convert to fraction form
    1,106,688.80/1,660,033.20 = 909,858.80/x
  3. Step 3: Cross multiply
    1,106,688.80x = 1,660,033.20 × 909,858.80
  4. Step 4: Simplify right side
    1,106,688.80x = 1,510,395,815,312.16
  5. Step 5: Solve for x
    x = 1,510,395,815,312.16/1,106,688.80
  6. Step 6: Final answer
    x = 1,364,788.20

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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.