Home / 1,322,643.14-1,825,416.36-778,829.52

Finding the Fourth Proportional to 1,322,643.14, 1,825,416.36 and 778,829.52

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Solution

The fourth proportional to 1,322,643.14, 1,825,416.36 and 778,829.52 is: 1,074,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,643.14 : 1,825,416.36 = 778,829.52 : x
  2. Step 2: Convert to fraction form
    1,322,643.14/1,825,416.36 = 778,829.52/x
  3. Step 3: Cross multiply
    1,322,643.14x = 1,825,416.36 × 778,829.52
  4. Step 4: Simplify right side
    1,322,643.14x = 1,421,688,147,458.95
  5. Step 5: Solve for x
    x = 1,421,688,147,458.95/1,322,643.14
  6. Step 6: Final answer
    x = 1,074,884.15

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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.