Home / 449,623.16-620,472.75-245,669.66

Finding the Fourth Proportional to 449,623.16, 620,472.75 and 245,669.66

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Solution

The fourth proportional to 449,623.16, 620,472.75 and 245,669.66 is: 339,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,623.16 : 620,472.75 = 245,669.66 : x
  2. Step 2: Convert to fraction form
    449,623.16/620,472.75 = 245,669.66/x
  3. Step 3: Cross multiply
    449,623.16x = 620,472.75 × 245,669.66
  4. Step 4: Simplify right side
    449,623.16x = 152,431,329,531.77
  5. Step 5: Solve for x
    x = 152,431,329,531.77/449,623.16
  6. Step 6: Final answer
    x = 339,020.19

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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.