Home / 899,278.82-1,240,967.77-491,394.67

Finding the Fourth Proportional to 899,278.82, 1,240,967.77 and 491,394.67

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Solution

The fourth proportional to 899,278.82, 1,240,967.77 and 491,394.67 is: 678,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,278.82 : 1,240,967.77 = 491,394.67 : x
  2. Step 2: Convert to fraction form
    899,278.82/1,240,967.77 = 491,394.67/x
  3. Step 3: Cross multiply
    899,278.82x = 1,240,967.77 × 491,394.67
  4. Step 4: Simplify right side
    899,278.82x = 609,804,943,488.88
  5. Step 5: Solve for x
    x = 609,804,943,488.88/899,278.82
  6. Step 6: Final answer
    x = 678,104.42

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1.5x scale

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.