Home / 1,128,000.40-1,556,629.86-618,704.80

Finding the Fourth Proportional to 1,128,000.40, 1,556,629.86 and 618,704.80

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Solution

The fourth proportional to 1,128,000.40, 1,556,629.86 and 618,704.80 is: 853,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,000.40 : 1,556,629.86 = 618,704.80 : x
  2. Step 2: Convert to fraction form
    1,128,000.40/1,556,629.86 = 618,704.80/x
  3. Step 3: Cross multiply
    1,128,000.40x = 1,556,629.86 × 618,704.80
  4. Step 4: Simplify right side
    1,128,000.40x = 963,094,366,205.33
  5. Step 5: Solve for x
    x = 963,094,366,205.33/1,128,000.40
  6. Step 6: Final answer
    x = 853,806.76

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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.