Home / 1,284,612.96-1,772,778.24-711,665.28

Finding the Fourth Proportional to 1,284,612.96, 1,772,778.24 and 711,665.28

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Solution

The fourth proportional to 1,284,612.96, 1,772,778.24 and 711,665.28 is: 982,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,612.96 : 1,772,778.24 = 711,665.28 : x
  2. Step 2: Convert to fraction form
    1,284,612.96/1,772,778.24 = 711,665.28/x
  3. Step 3: Cross multiply
    1,284,612.96x = 1,772,778.24 × 711,665.28
  4. Step 4: Simplify right side
    1,284,612.96x = 1,261,624,722,547.51
  5. Step 5: Solve for x
    x = 1,261,624,722,547.51/1,284,612.96
  6. Step 6: Final answer
    x = 982,104.93

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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.