Home / 628,503.99-867,355.19-356,583.35

Finding the Fourth Proportional to 628,503.99, 867,355.19 and 356,583.35

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Solution

The fourth proportional to 628,503.99, 867,355.19 and 356,583.35 is: 492,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,503.99 : 867,355.19 = 356,583.35 : x
  2. Step 2: Convert to fraction form
    628,503.99/867,355.19 = 356,583.35/x
  3. Step 3: Cross multiply
    628,503.99x = 867,355.19 × 356,583.35
  4. Step 4: Simplify right side
    628,503.99x = 309,284,413,170.39
  5. Step 5: Solve for x
    x = 309,284,413,170.39/628,503.99
  6. Step 6: Final answer
    x = 492,096.18

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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.