Home / 3,178,932.48-4,386,902.40-1,728,628.80

Finding the Fourth Proportional to 3,178,932.48, 4,386,902.40 and 1,728,628.80

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Solution

The fourth proportional to 3,178,932.48, 4,386,902.40 and 1,728,628.80 is: 2,385,494.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,932.48 : 4,386,902.40 = 1,728,628.80 : x
  2. Step 2: Convert to fraction form
    3,178,932.48/4,386,902.40 = 1,728,628.80/x
  3. Step 3: Cross multiply
    3,178,932.48x = 4,386,902.40 × 1,728,628.80
  4. Step 4: Simplify right side
    3,178,932.48x = 7,583,325,831,429.12
  5. Step 5: Solve for x
    x = 7,583,325,831,429.12/3,178,932.48
  6. Step 6: Final answer
    x = 2,385,494.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.