Home / 991,379.94-1,368,101.79-538,670.94

Finding the Fourth Proportional to 991,379.94, 1,368,101.79 and 538,670.94

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Solution

The fourth proportional to 991,379.94, 1,368,101.79 and 538,670.94 is: 743,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,379.94 : 1,368,101.79 = 538,670.94 : x
  2. Step 2: Convert to fraction form
    991,379.94/1,368,101.79 = 538,670.94/x
  3. Step 3: Cross multiply
    991,379.94x = 1,368,101.79 × 538,670.94
  4. Step 4: Simplify right side
    991,379.94x = 736,956,677,234.98
  5. Step 5: Solve for x
    x = 736,956,677,234.98/991,379.94
  6. Step 6: Final answer
    x = 743,364.52

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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.