Home / 989,861.70-1,484,792.55-691,263.30

Finding the Fourth Proportional to 989,861.70, 1,484,792.55 and 691,263.30

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Solution

The fourth proportional to 989,861.70, 1,484,792.55 and 691,263.30 is: 1,036,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,861.70 : 1,484,792.55 = 691,263.30 : x
  2. Step 2: Convert to fraction form
    989,861.70/1,484,792.55 = 691,263.30/x
  3. Step 3: Cross multiply
    989,861.70x = 1,484,792.55 × 691,263.30
  4. Step 4: Simplify right side
    989,861.70x = 1,026,382,597,928.42
  5. Step 5: Solve for x
    x = 1,026,382,597,928.42/989,861.70
  6. Step 6: Final answer
    x = 1,036,894.95

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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.