Home / 1,443,925.36-1,991,991.34-870,647.04

Finding the Fourth Proportional to 1,443,925.36, 1,991,991.34 and 870,647.04

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Solution

The fourth proportional to 1,443,925.36, 1,991,991.34 and 870,647.04 is: 1,201,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,925.36 : 1,991,991.34 = 870,647.04 : x
  2. Step 2: Convert to fraction form
    1,443,925.36/1,991,991.34 = 870,647.04/x
  3. Step 3: Cross multiply
    1,443,925.36x = 1,991,991.34 × 870,647.04
  4. Step 4: Simplify right side
    1,443,925.36x = 1,734,321,363,876.63
  5. Step 5: Solve for x
    x = 1,734,321,363,876.63/1,443,925.36
  6. Step 6: Final answer
    x = 1,201,115.66

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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.