Home / 1,389,674.40-2,084,511.60-492,129.60

Finding the Fourth Proportional to 1,389,674.40, 2,084,511.60 and 492,129.60

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Solution

The fourth proportional to 1,389,674.40, 2,084,511.60 and 492,129.60 is: 738,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,674.40 : 2,084,511.60 = 492,129.60 : x
  2. Step 2: Convert to fraction form
    1,389,674.40/2,084,511.60 = 492,129.60/x
  3. Step 3: Cross multiply
    1,389,674.40x = 2,084,511.60 × 492,129.60
  4. Step 4: Simplify right side
    1,389,674.40x = 1,025,849,859,903.36
  5. Step 5: Solve for x
    x = 1,025,849,859,903.36/1,389,674.40
  6. Step 6: Final answer
    x = 738,194.40

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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.