Home / 1,289,146.32-1,778,525.64-950,419.92

Finding the Fourth Proportional to 1,289,146.32, 1,778,525.64 and 950,419.92

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Solution

The fourth proportional to 1,289,146.32, 1,778,525.64 and 950,419.92 is: 1,311,213.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,146.32 : 1,778,525.64 = 950,419.92 : x
  2. Step 2: Convert to fraction form
    1,289,146.32/1,778,525.64 = 950,419.92/x
  3. Step 3: Cross multiply
    1,289,146.32x = 1,778,525.64 × 950,419.92
  4. Step 4: Simplify right side
    1,289,146.32x = 1,690,346,196,486.75
  5. Step 5: Solve for x
    x = 1,690,346,196,486.75/1,289,146.32
  6. Step 6: Final answer
    x = 1,311,213.61

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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.