Home / 1,238,015.63-1,707,832.79-808,547.15

Finding the Fourth Proportional to 1,238,015.63, 1,707,832.79 and 808,547.15

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Solution

The fourth proportional to 1,238,015.63, 1,707,832.79 and 808,547.15 is: 1,115,384.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,015.63 : 1,707,832.79 = 808,547.15 : x
  2. Step 2: Convert to fraction form
    1,238,015.63/1,707,832.79 = 808,547.15/x
  3. Step 3: Cross multiply
    1,238,015.63x = 1,707,832.79 × 808,547.15
  4. Step 4: Simplify right side
    1,238,015.63x = 1,380,863,335,257.89
  5. Step 5: Solve for x
    x = 1,380,863,335,257.89/1,238,015.63
  6. Step 6: Final answer
    x = 1,115,384.41

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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.