Home / 840,045.36-1,260,072.60-208,959.18

Finding the Fourth Proportional to 840,045.36, 1,260,072.60 and 208,959.18

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Solution

The fourth proportional to 840,045.36, 1,260,072.60 and 208,959.18 is: 313,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,045.36 : 1,260,072.60 = 208,959.18 : x
  2. Step 2: Convert to fraction form
    840,045.36/1,260,072.60 = 208,959.18/x
  3. Step 3: Cross multiply
    840,045.36x = 1,260,072.60 × 208,959.18
  4. Step 4: Simplify right side
    840,045.36x = 263,303,737,236.47
  5. Step 5: Solve for x
    x = 263,303,737,236.47/840,045.36
  6. Step 6: Final answer
    x = 313,439.90

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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.