Home / 449,826.30-620,776.89-245,890.80

Finding the Fourth Proportional to 449,826.30, 620,776.89 and 245,890.80

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Solution

The fourth proportional to 449,826.30, 620,776.89 and 245,890.80 is: 339,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,826.30 : 620,776.89 = 245,890.80 : x
  2. Step 2: Convert to fraction form
    449,826.30/620,776.89 = 245,890.80/x
  3. Step 3: Cross multiply
    449,826.30x = 620,776.89 × 245,890.80
  4. Step 4: Simplify right side
    449,826.30x = 152,643,326,103.61
  5. Step 5: Solve for x
    x = 152,643,326,103.61/449,826.30
  6. Step 6: Final answer
    x = 339,338.38

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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.