Home / 449,876.76-620,830.04-245,928.56

Finding the Fourth Proportional to 449,876.76, 620,830.04 and 245,928.56

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Solution

The fourth proportional to 449,876.76, 620,830.04 and 245,928.56 is: 339,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,876.76 : 620,830.04 = 245,928.56 : x
  2. Step 2: Convert to fraction form
    449,876.76/620,830.04 = 245,928.56/x
  3. Step 3: Cross multiply
    449,876.76x = 620,830.04 × 245,928.56
  4. Step 4: Simplify right side
    449,876.76x = 152,679,837,741.94
  5. Step 5: Solve for x
    x = 152,679,837,741.94/449,876.76
  6. Step 6: Final answer
    x = 339,381.47

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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.