Home / 991,378.44-1,368,099.72-538,669.44

Finding the Fourth Proportional to 991,378.44, 1,368,099.72 and 538,669.44

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Solution

The fourth proportional to 991,378.44, 1,368,099.72 and 538,669.44 is: 743,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,378.44 : 1,368,099.72 = 538,669.44 : x
  2. Step 2: Convert to fraction form
    991,378.44/1,368,099.72 = 538,669.44/x
  3. Step 3: Cross multiply
    991,378.44x = 1,368,099.72 × 538,669.44
  4. Step 4: Simplify right side
    991,378.44x = 736,953,510,036.56
  5. Step 5: Solve for x
    x = 736,953,510,036.56/991,378.44
  6. Step 6: Final answer
    x = 743,362.45

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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.