Home / 405,324.06-607,840.29-139,015.50

Finding the Fourth Proportional to 405,324.06, 607,840.29 and 139,015.50

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Solution

The fourth proportional to 405,324.06, 607,840.29 and 139,015.50 is: 208,473.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,324.06 : 607,840.29 = 139,015.50 : x
  2. Step 2: Convert to fraction form
    405,324.06/607,840.29 = 139,015.50/x
  3. Step 3: Cross multiply
    405,324.06x = 607,840.29 × 139,015.50
  4. Step 4: Simplify right side
    405,324.06x = 84,499,221,834.50
  5. Step 5: Solve for x
    x = 84,499,221,834.50/405,324.06
  6. Step 6: Final answer
    x = 208,473.24

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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.