Home / 1,238,450.94-1,708,336.45-778,836.48

Finding the Fourth Proportional to 1,238,450.94, 1,708,336.45 and 778,836.48

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Solution

The fourth proportional to 1,238,450.94, 1,708,336.45 and 778,836.48 is: 1,074,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,450.94 : 1,708,336.45 = 778,836.48 : x
  2. Step 2: Convert to fraction form
    1,238,450.94/1,708,336.45 = 778,836.48/x
  3. Step 3: Cross multiply
    1,238,450.94x = 1,708,336.45 × 778,836.48
  4. Step 4: Simplify right side
    1,238,450.94x = 1,330,514,747,373.70
  5. Step 5: Solve for x
    x = 1,330,514,747,373.70/1,238,450.94
  6. Step 6: Final answer
    x = 1,074,337.87

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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.