Home / 501,328.40-691,828.44-274,974.80

Finding the Fourth Proportional to 501,328.40, 691,828.44 and 274,974.80

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Solution

The fourth proportional to 501,328.40, 691,828.44 and 274,974.80 is: 379,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,328.40 : 691,828.44 = 274,974.80 : x
  2. Step 2: Convert to fraction form
    501,328.40/691,828.44 = 274,974.80/x
  3. Step 3: Cross multiply
    501,328.40x = 691,828.44 × 274,974.80
  4. Step 4: Simplify right side
    501,328.40x = 190,235,386,923.31
  5. Step 5: Solve for x
    x = 190,235,386,923.31/501,328.40
  6. Step 6: Final answer
    x = 379,462.62

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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.