Home / 1,128,265.36-1,556,912.80-618,967.73

Finding the Fourth Proportional to 1,128,265.36, 1,556,912.80 and 618,967.73

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Solution

The fourth proportional to 1,128,265.36, 1,556,912.80 and 618,967.73 is: 854,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,265.36 : 1,556,912.80 = 618,967.73 : x
  2. Step 2: Convert to fraction form
    1,128,265.36/1,556,912.80 = 618,967.73/x
  3. Step 3: Cross multiply
    1,128,265.36x = 1,556,912.80 × 618,967.73
  4. Step 4: Simplify right side
    1,128,265.36x = 963,678,781,623.94
  5. Step 5: Solve for x
    x = 963,678,781,623.94/1,128,265.36
  6. Step 6: Final answer
    x = 854,124.23

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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.