Home / 989,738.93-1,485,354.76-724,184.57

Finding the Fourth Proportional to 989,738.93, 1,485,354.76 and 724,184.57

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Solution

The fourth proportional to 989,738.93, 1,485,354.76 and 724,184.57 is: 1,086,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,738.93 : 1,485,354.76 = 724,184.57 : x
  2. Step 2: Convert to fraction form
    989,738.93/1,485,354.76 = 724,184.57/x
  3. Step 3: Cross multiply
    989,738.93x = 1,485,354.76 × 724,184.57
  4. Step 4: Simplify right side
    989,738.93x = 1,075,670,988,930.82
  5. Step 5: Solve for x
    x = 1,075,670,988,930.82/989,738.93
  6. Step 6: Final answer
    x = 1,086,822.96

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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.