Home / 1,586,939.64-2,190,647.04-1,071,391.80

Finding the Fourth Proportional to 1,586,939.64, 2,190,647.04 and 1,071,391.80

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Solution

The fourth proportional to 1,586,939.64, 2,190,647.04 and 1,071,391.80 is: 1,478,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,939.64 : 2,190,647.04 = 1,071,391.80 : x
  2. Step 2: Convert to fraction form
    1,586,939.64/2,190,647.04 = 1,071,391.80/x
  3. Step 3: Cross multiply
    1,586,939.64x = 2,190,647.04 × 1,071,391.80
  4. Step 4: Simplify right side
    1,586,939.64x = 2,347,041,275,350.27
  5. Step 5: Solve for x
    x = 2,347,041,275,350.27/1,586,939.64
  6. Step 6: Final answer
    x = 1,478,973.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.