Home / 1,128,148.70-1,556,845.50-618,851.07

Finding the Fourth Proportional to 1,128,148.70, 1,556,845.50 and 618,851.07

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Solution

The fourth proportional to 1,128,148.70, 1,556,845.50 and 618,851.07 is: 854,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,148.70 : 1,556,845.50 = 618,851.07 : x
  2. Step 2: Convert to fraction form
    1,128,148.70/1,556,845.50 = 618,851.07/x
  3. Step 3: Cross multiply
    1,128,148.70x = 1,556,845.50 × 618,851.07
  4. Step 4: Simplify right side
    1,128,148.70x = 963,455,503,499.69
  5. Step 5: Solve for x
    x = 963,455,503,499.69/1,128,148.70
  6. Step 6: Final answer
    x = 854,014.64

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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.