Home / 1,531,054.44-2,112,838.38-842,711.54

Finding the Fourth Proportional to 1,531,054.44, 2,112,838.38 and 842,711.54

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Solution

The fourth proportional to 1,531,054.44, 2,112,838.38 and 842,711.54 is: 1,162,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,054.44 : 2,112,838.38 = 842,711.54 : x
  2. Step 2: Convert to fraction form
    1,531,054.44/2,112,838.38 = 842,711.54/x
  3. Step 3: Cross multiply
    1,531,054.44x = 2,112,838.38 × 842,711.54
  4. Step 4: Simplify right side
    1,531,054.44x = 1,780,513,274,416.71
  5. Step 5: Solve for x
    x = 1,780,513,274,416.71/1,531,054.44
  6. Step 6: Final answer
    x = 1,162,932.70

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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.