Home / 1,155,243.60-1,728,199.80-999,205.20

Finding the Fourth Proportional to 1,155,243.60, 1,728,199.80 and 999,205.20

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Solution

The fourth proportional to 1,155,243.60, 1,728,199.80 and 999,205.20 is: 1,494,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,243.60 : 1,728,199.80 = 999,205.20 : x
  2. Step 2: Convert to fraction form
    1,155,243.60/1,728,199.80 = 999,205.20/x
  3. Step 3: Cross multiply
    1,155,243.60x = 1,728,199.80 × 999,205.20
  4. Step 4: Simplify right side
    1,155,243.60x = 1,726,826,226,798.96
  5. Step 5: Solve for x
    x = 1,726,826,226,798.96/1,155,243.60
  6. Step 6: Final answer
    x = 1,494,772.38

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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.