Home / 1,511,462.40-2,085,820.32-823,135.72

Finding the Fourth Proportional to 1,511,462.40, 2,085,820.32 and 823,135.72

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Solution

The fourth proportional to 1,511,462.40, 2,085,820.32 and 823,135.72 is: 1,135,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,462.40 : 2,085,820.32 = 823,135.72 : x
  2. Step 2: Convert to fraction form
    1,511,462.40/2,085,820.32 = 823,135.72/x
  3. Step 3: Cross multiply
    1,511,462.40x = 2,085,820.32 × 823,135.72
  4. Step 4: Simplify right side
    1,511,462.40x = 1,716,913,210,893.83
  5. Step 5: Solve for x
    x = 1,716,913,210,893.83/1,511,462.40
  6. Step 6: Final answer
    x = 1,135,928.50

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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.