Home / 989,756.30-1,485,380.82-724,201.94

Finding the Fourth Proportional to 989,756.30, 1,485,380.82 and 724,201.94

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Solution

The fourth proportional to 989,756.30, 1,485,380.82 and 724,201.94 is: 1,086,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,756.30 : 1,485,380.82 = 724,201.94 : x
  2. Step 2: Convert to fraction form
    989,756.30/1,485,380.82 = 724,201.94/x
  3. Step 3: Cross multiply
    989,756.30x = 1,485,380.82 × 724,201.94
  4. Step 4: Simplify right side
    989,756.30x = 1,075,715,671,482.79
  5. Step 5: Solve for x
    x = 1,075,715,671,482.79/989,756.30
  6. Step 6: Final answer
    x = 1,086,849.03

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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.