Home / 1,152,131.20-1,728,196.80-730,153.60

Finding the Fourth Proportional to 1,152,131.20, 1,728,196.80 and 730,153.60

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Solution

The fourth proportional to 1,152,131.20, 1,728,196.80 and 730,153.60 is: 1,095,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,131.20 : 1,728,196.80 = 730,153.60 : x
  2. Step 2: Convert to fraction form
    1,152,131.20/1,728,196.80 = 730,153.60/x
  3. Step 3: Cross multiply
    1,152,131.20x = 1,728,196.80 × 730,153.60
  4. Step 4: Simplify right side
    1,152,131.20x = 1,261,849,115,028.48
  5. Step 5: Solve for x
    x = 1,261,849,115,028.48/1,152,131.20
  6. Step 6: Final answer
    x = 1,095,230.40

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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.