Home / 938,409.18-1,407,316.50-339,291.06

Finding the Fourth Proportional to 938,409.18, 1,407,316.50 and 339,291.06

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Solution

The fourth proportional to 938,409.18, 1,407,316.50 and 339,291.06 is: 508,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,409.18 : 1,407,316.50 = 339,291.06 : x
  2. Step 2: Convert to fraction form
    938,409.18/1,407,316.50 = 339,291.06/x
  3. Step 3: Cross multiply
    938,409.18x = 1,407,316.50 × 339,291.06
  4. Step 4: Simplify right side
    938,409.18x = 477,489,907,040.49
  5. Step 5: Solve for x
    x = 477,489,907,040.49/938,409.18
  6. Step 6: Final answer
    x = 508,829.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.