Home / 2,175,205.20-3,262,807.80-1,230,421.20

Finding the Fourth Proportional to 2,175,205.20, 3,262,807.80 and 1,230,421.20

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Solution

The fourth proportional to 2,175,205.20, 3,262,807.80 and 1,230,421.20 is: 1,845,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,205.20 : 3,262,807.80 = 1,230,421.20 : x
  2. Step 2: Convert to fraction form
    2,175,205.20/3,262,807.80 = 1,230,421.20/x
  3. Step 3: Cross multiply
    2,175,205.20x = 3,262,807.80 × 1,230,421.20
  4. Step 4: Simplify right side
    2,175,205.20x = 4,014,627,888,645.36
  5. Step 5: Solve for x
    x = 4,014,627,888,645.36/2,175,205.20
  6. Step 6: Final answer
    x = 1,845,631.80

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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.