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Finding the Fourth Proportional to 1,869,409.02, 2,802,990.44 and 730,815.10

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Solution

The fourth proportional to 1,869,409.02, 2,802,990.44 and 730,815.10 is: 1,095,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,409.02 : 2,802,990.44 = 730,815.10 : x
  2. Step 2: Convert to fraction form
    1,869,409.02/2,802,990.44 = 730,815.10/x
  3. Step 3: Cross multiply
    1,869,409.02x = 2,802,990.44 × 730,815.10
  4. Step 4: Simplify right side
    1,869,409.02x = 2,048,467,738,707.64
  5. Step 5: Solve for x
    x = 2,048,467,738,707.64/1,869,409.02
  6. Step 6: Final answer
    x = 1,095,783.60

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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.