Home / 692,064.87-1,036,638.09-439,212.03

Finding the Fourth Proportional to 692,064.87, 1,036,638.09 and 439,212.03

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Solution

The fourth proportional to 692,064.87, 1,036,638.09 and 439,212.03 is: 657,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,064.87 : 1,036,638.09 = 439,212.03 : x
  2. Step 2: Convert to fraction form
    692,064.87/1,036,638.09 = 439,212.03/x
  3. Step 3: Cross multiply
    692,064.87x = 1,036,638.09 × 439,212.03
  4. Step 4: Simplify right side
    692,064.87x = 455,303,919,884.22
  5. Step 5: Solve for x
    x = 455,303,919,884.22/692,064.87
  6. Step 6: Final answer
    x = 657,891.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.