Home / 1,285,234.80-1,927,852.20-986,636.40

Finding the Fourth Proportional to 1,285,234.80, 1,927,852.20 and 986,636.40

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Solution

The fourth proportional to 1,285,234.80, 1,927,852.20 and 986,636.40 is: 1,479,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,234.80 : 1,927,852.20 = 986,636.40 : x
  2. Step 2: Convert to fraction form
    1,285,234.80/1,927,852.20 = 986,636.40/x
  3. Step 3: Cross multiply
    1,285,234.80x = 1,927,852.20 × 986,636.40
  4. Step 4: Simplify right side
    1,285,234.80x = 1,902,089,154,340.08
  5. Step 5: Solve for x
    x = 1,902,089,154,340.08/1,285,234.80
  6. Step 6: Final answer
    x = 1,479,954.60

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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.