Home / 1,531,052.18-2,112,835.29-842,709.29

Finding the Fourth Proportional to 1,531,052.18, 2,112,835.29 and 842,709.29

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Solution

The fourth proportional to 1,531,052.18, 2,112,835.29 and 842,709.29 is: 1,162,929.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,052.18 : 2,112,835.29 = 842,709.29 : x
  2. Step 2: Convert to fraction form
    1,531,052.18/2,112,835.29 = 842,709.29/x
  3. Step 3: Cross multiply
    1,531,052.18x = 2,112,835.29 × 842,709.29
  4. Step 4: Simplify right side
    1,531,052.18x = 1,780,505,913,398.51
  5. Step 5: Solve for x
    x = 1,780,505,913,398.51/1,531,052.18
  6. Step 6: Final answer
    x = 1,162,929.61

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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.