Home / 1,101,999.57-1,520,765.40-618,570.51

Finding the Fourth Proportional to 1,101,999.57, 1,520,765.40 and 618,570.51

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Solution

The fourth proportional to 1,101,999.57, 1,520,765.40 and 618,570.51 is: 853,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,999.57 : 1,520,765.40 = 618,570.51 : x
  2. Step 2: Convert to fraction form
    1,101,999.57/1,520,765.40 = 618,570.51/x
  3. Step 3: Cross multiply
    1,101,999.57x = 1,520,765.40 × 618,570.51
  4. Step 4: Simplify right side
    1,101,999.57x = 940,700,629,068.35
  5. Step 5: Solve for x
    x = 940,700,629,068.35/1,101,999.57
  6. Step 6: Final answer
    x = 853,630.67

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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.