Home / 987,004.20-1,362,075.18-579,112.98

Finding the Fourth Proportional to 987,004.20, 1,362,075.18 and 579,112.98

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Solution

The fourth proportional to 987,004.20, 1,362,075.18 and 579,112.98 is: 799,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,004.20 : 1,362,075.18 = 579,112.98 : x
  2. Step 2: Convert to fraction form
    987,004.20/1,362,075.18 = 579,112.98/x
  3. Step 3: Cross multiply
    987,004.20x = 1,362,075.18 × 579,112.98
  4. Step 4: Simplify right side
    987,004.20x = 788,795,416,473.84
  5. Step 5: Solve for x
    x = 788,795,416,473.84/987,004.20
  6. Step 6: Final answer
    x = 799,181.42

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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.