Home / 1,443,908.90-1,991,968.80-870,630.59

Finding the Fourth Proportional to 1,443,908.90, 1,991,968.80 and 870,630.59

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Solution

The fourth proportional to 1,443,908.90, 1,991,968.80 and 870,630.59 is: 1,201,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,908.90 : 1,991,968.80 = 870,630.59 : x
  2. Step 2: Convert to fraction form
    1,443,908.90/1,991,968.80 = 870,630.59/x
  3. Step 3: Cross multiply
    1,443,908.90x = 1,991,968.80 × 870,630.59
  4. Step 4: Simplify right side
    1,443,908.90x = 1,734,268,971,605.59
  5. Step 5: Solve for x
    x = 1,734,268,971,605.59/1,443,908.90
  6. Step 6: Final answer
    x = 1,201,093.07

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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.