Home / 987,004.70-1,362,075.87-579,113.48

Finding the Fourth Proportional to 987,004.70, 1,362,075.87 and 579,113.48

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Solution

The fourth proportional to 987,004.70, 1,362,075.87 and 579,113.48 is: 799,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,004.70 : 1,362,075.87 = 579,113.48 : x
  2. Step 2: Convert to fraction form
    987,004.70/1,362,075.87 = 579,113.48/x
  3. Step 3: Cross multiply
    987,004.70x = 1,362,075.87 × 579,113.48
  4. Step 4: Simplify right side
    987,004.70x = 788,796,497,099.73
  5. Step 5: Solve for x
    x = 788,796,497,099.73/987,004.70
  6. Step 6: Final answer
    x = 799,182.11

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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.