Home / 1,166,128.58-1,749,701.12-408,513.51

Finding the Fourth Proportional to 1,166,128.58, 1,749,701.12 and 408,513.51

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Solution

The fourth proportional to 1,166,128.58, 1,749,701.12 and 408,513.51 is: 612,948.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,128.58 : 1,749,701.12 = 408,513.51 : x
  2. Step 2: Convert to fraction form
    1,166,128.58/1,749,701.12 = 408,513.51/x
  3. Step 3: Cross multiply
    1,166,128.58x = 1,749,701.12 × 408,513.51
  4. Step 4: Simplify right side
    1,166,128.58x = 714,776,543,939.56
  5. Step 5: Solve for x
    x = 714,776,543,939.56/1,166,128.58
  6. Step 6: Final answer
    x = 612,948.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.