Home / 1,127,957.40-1,556,570.52-618,661.80

Finding the Fourth Proportional to 1,127,957.40, 1,556,570.52 and 618,661.80

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Solution

The fourth proportional to 1,127,957.40, 1,556,570.52 and 618,661.80 is: 853,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,957.40 : 1,556,570.52 = 618,661.80 : x
  2. Step 2: Convert to fraction form
    1,127,957.40/1,556,570.52 = 618,661.80/x
  3. Step 3: Cross multiply
    1,127,957.40x = 1,556,570.52 × 618,661.80
  4. Step 4: Simplify right side
    1,127,957.40x = 962,990,719,730.14
  5. Step 5: Solve for x
    x = 962,990,719,730.14/1,127,957.40
  6. Step 6: Final answer
    x = 853,747.42

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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.