Home / 489,904.18-734,667.33-190,345.32

Finding the Fourth Proportional to 489,904.18, 734,667.33 and 190,345.32

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Solution

The fourth proportional to 489,904.18, 734,667.33 and 190,345.32 is: 285,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904.18 : 734,667.33 = 190,345.32 : x
  2. Step 2: Convert to fraction form
    489,904.18/734,667.33 = 190,345.32/x
  3. Step 3: Cross multiply
    489,904.18x = 734,667.33 × 190,345.32
  4. Step 4: Simplify right side
    489,904.18x = 139,840,488,736.19
  5. Step 5: Solve for x
    x = 139,840,488,736.19/489,904.18
  6. Step 6: Final answer
    x = 285,444.57

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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.