Home / 989,819.70-1,484,729.55-740,987.70

Finding the Fourth Proportional to 989,819.70, 1,484,729.55 and 740,987.70

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Solution

The fourth proportional to 989,819.70, 1,484,729.55 and 740,987.70 is: 1,111,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,819.70 : 1,484,729.55 = 740,987.70 : x
  2. Step 2: Convert to fraction form
    989,819.70/1,484,729.55 = 740,987.70/x
  3. Step 3: Cross multiply
    989,819.70x = 1,484,729.55 × 740,987.70
  4. Step 4: Simplify right side
    989,819.70x = 1,100,166,334,376.53
  5. Step 5: Solve for x
    x = 1,100,166,334,376.53/989,819.70
  6. Step 6: Final answer
    x = 1,111,481.55

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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.