Home / 421,629.08-581,879.71-240,345.32

Finding the Fourth Proportional to 421,629.08, 581,879.71 and 240,345.32

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Solution

The fourth proportional to 421,629.08, 581,879.71 and 240,345.32 is: 331,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,629.08 : 581,879.71 = 240,345.32 : x
  2. Step 2: Convert to fraction form
    421,629.08/581,879.71 = 240,345.32/x
  3. Step 3: Cross multiply
    421,629.08x = 581,879.71 × 240,345.32
  4. Step 4: Simplify right side
    421,629.08x = 139,852,065,694.42
  5. Step 5: Solve for x
    x = 139,852,065,694.42/421,629.08
  6. Step 6: Final answer
    x = 331,694.54

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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.