Home / 1,443,908.60-1,991,968.39-870,630.29

Finding the Fourth Proportional to 1,443,908.60, 1,991,968.39 and 870,630.29

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Solution

The fourth proportional to 1,443,908.60, 1,991,968.39 and 870,630.29 is: 1,201,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,908.60 : 1,991,968.39 = 870,630.29 : x
  2. Step 2: Convert to fraction form
    1,443,908.60/1,991,968.39 = 870,630.29/x
  3. Step 3: Cross multiply
    1,443,908.60x = 1,991,968.39 × 870,630.29
  4. Step 4: Simplify right side
    1,443,908.60x = 1,734,268,017,056.53
  5. Step 5: Solve for x
    x = 1,734,268,017,056.53/1,443,908.60
  6. Step 6: Final answer
    x = 1,201,092.66

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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.