Home / 1,238,449.94-1,708,335.08-778,835.48

Finding the Fourth Proportional to 1,238,449.94, 1,708,335.08 and 778,835.48

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Solution

The fourth proportional to 1,238,449.94, 1,708,335.08 and 778,835.48 is: 1,074,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,449.94 : 1,708,335.08 = 778,835.48 : x
  2. Step 2: Convert to fraction form
    1,238,449.94/1,708,335.08 = 778,835.48/x
  3. Step 3: Cross multiply
    1,238,449.94x = 1,708,335.08 × 778,835.48
  4. Step 4: Simplify right side
    1,238,449.94x = 1,330,511,959,596.79
  5. Step 5: Solve for x
    x = 1,330,511,959,596.79/1,238,449.94
  6. Step 6: Final answer
    x = 1,074,336.49

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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.