Home / 989,745.69-1,485,364.89-724,191.33

Finding the Fourth Proportional to 989,745.69, 1,485,364.89 and 724,191.33

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Solution

The fourth proportional to 989,745.69, 1,485,364.89 and 724,191.33 is: 1,086,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,745.69 : 1,485,364.89 = 724,191.33 : x
  2. Step 2: Convert to fraction form
    989,745.69/1,485,364.89 = 724,191.33/x
  3. Step 3: Cross multiply
    989,745.69x = 1,485,364.89 × 724,191.33
  4. Step 4: Simplify right side
    989,745.69x = 1,075,688,375,224.40
  5. Step 5: Solve for x
    x = 1,075,688,375,224.40/989,745.69
  6. Step 6: Final answer
    x = 1,086,833.10

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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.