Home / 1,382,148.88-1,907,322.60-778,523.92

Finding the Fourth Proportional to 1,382,148.88, 1,907,322.60 and 778,523.92

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Solution

The fourth proportional to 1,382,148.88, 1,907,322.60 and 778,523.92 is: 1,074,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,148.88 : 1,907,322.60 = 778,523.92 : x
  2. Step 2: Convert to fraction form
    1,382,148.88/1,907,322.60 = 778,523.92/x
  3. Step 3: Cross multiply
    1,382,148.88x = 1,907,322.60 × 778,523.92
  4. Step 4: Simplify right side
    1,382,148.88x = 1,484,896,267,256.59
  5. Step 5: Solve for x
    x = 1,484,896,267,256.59/1,382,148.88
  6. Step 6: Final answer
    x = 1,074,338.87

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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.