Home / 989,990.20-1,483,235.70-927,004.60

Finding the Fourth Proportional to 989,990.20, 1,483,235.70 and 927,004.60

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Solution

The fourth proportional to 989,990.20, 1,483,235.70 and 927,004.60 is: 1,388,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,990.20 : 1,483,235.70 = 927,004.60 : x
  2. Step 2: Convert to fraction form
    989,990.20/1,483,235.70 = 927,004.60/x
  3. Step 3: Cross multiply
    989,990.20x = 1,483,235.70 × 927,004.60
  4. Step 4: Simplify right side
    989,990.20x = 1,374,966,316,784.22
  5. Step 5: Solve for x
    x = 1,374,966,316,784.22/989,990.20
  6. Step 6: Final answer
    x = 1,388,868.61

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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.