Home / 753,208.78-1,039,578.98-447,455.02

Finding the Fourth Proportional to 753,208.78, 1,039,578.98 and 447,455.02

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Solution

The fourth proportional to 753,208.78, 1,039,578.98 and 447,455.02 is: 617,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,208.78 : 1,039,578.98 = 447,455.02 : x
  2. Step 2: Convert to fraction form
    753,208.78/1,039,578.98 = 447,455.02/x
  3. Step 3: Cross multiply
    753,208.78x = 1,039,578.98 × 447,455.02
  4. Step 4: Simplify right side
    753,208.78x = 465,164,825,852.31
  5. Step 5: Solve for x
    x = 465,164,825,852.31/753,208.78
  6. Step 6: Final answer
    x = 617,577.54

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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.