Home / 3,992,200.40-5,988,300.60-1,152,405.20

Finding the Fourth Proportional to 3,992,200.40, 5,988,300.60 and 1,152,405.20

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Solution

The fourth proportional to 3,992,200.40, 5,988,300.60 and 1,152,405.20 is: 1,728,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,200.40 : 5,988,300.60 = 1,152,405.20 : x
  2. Step 2: Convert to fraction form
    3,992,200.40/5,988,300.60 = 1,152,405.20/x
  3. Step 3: Cross multiply
    3,992,200.40x = 5,988,300.60 × 1,152,405.20
  4. Step 4: Simplify right side
    3,992,200.40x = 6,900,948,750,603.12
  5. Step 5: Solve for x
    x = 6,900,948,750,603.12/3,992,200.40
  6. Step 6: Final answer
    x = 1,728,607.80

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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.