Home / 1,443,320.40-1,991,733-798,767.76

Finding the Fourth Proportional to 1,443,320.40, 1,991,733 and 798,767.76

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Solution

The fourth proportional to 1,443,320.40, 1,991,733 and 798,767.76 is: 1,102,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,320.40 : 1,991,733 = 798,767.76 : x
  2. Step 2: Convert to fraction form
    1,443,320.40/1,991,733 = 798,767.76/x
  3. Step 3: Cross multiply
    1,443,320.40x = 1,991,733 × 798,767.76
  4. Step 4: Simplify right side
    1,443,320.40x = 1,590,932,106,928.08
  5. Step 5: Solve for x
    x = 1,590,932,106,928.08/1,443,320.40
  6. Step 6: Final answer
    x = 1,102,272.31

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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.