Home / 1,127,720-1,556,110.56-618,288.32

Finding the Fourth Proportional to 1,127,720, 1,556,110.56 and 618,288.32

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Solution

The fourth proportional to 1,127,720, 1,556,110.56 and 618,288.32 is: 853,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,720 : 1,556,110.56 = 618,288.32 : x
  2. Step 2: Convert to fraction form
    1,127,720/1,556,110.56 = 618,288.32/x
  3. Step 3: Cross multiply
    1,127,720x = 1,556,110.56 × 618,288.32
  4. Step 4: Simplify right side
    1,127,720x = 962,124,983,876.66
  5. Step 5: Solve for x
    x = 962,124,983,876.66/1,127,720
  6. Step 6: Final answer
    x = 853,159.46

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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.