Home / 1,262,129.32-1,741,740.66-689,157.28

Finding the Fourth Proportional to 1,262,129.32, 1,741,740.66 and 689,157.28

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Solution

The fourth proportional to 1,262,129.32, 1,741,740.66 and 689,157.28 is: 951,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,129.32 : 1,741,740.66 = 689,157.28 : x
  2. Step 2: Convert to fraction form
    1,262,129.32/1,741,740.66 = 689,157.28/x
  3. Step 3: Cross multiply
    1,262,129.32x = 1,741,740.66 × 689,157.28
  4. Step 4: Simplify right side
    1,262,129.32x = 1,200,333,243,556.52
  5. Step 5: Solve for x
    x = 1,200,333,243,556.52/1,262,129.32
  6. Step 6: Final answer
    x = 951,038.24

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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.