Home / 407,778.10-562,538.52-286,986.44

Finding the Fourth Proportional to 407,778.10, 562,538.52 and 286,986.44

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Solution

The fourth proportional to 407,778.10, 562,538.52 and 286,986.44 is: 395,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,778.10 : 562,538.52 = 286,986.44 : x
  2. Step 2: Convert to fraction form
    407,778.10/562,538.52 = 286,986.44/x
  3. Step 3: Cross multiply
    407,778.10x = 562,538.52 × 286,986.44
  4. Step 4: Simplify right side
    407,778.10x = 161,440,928,624.02
  5. Step 5: Solve for x
    x = 161,440,928,624.02/407,778.10
  6. Step 6: Final answer
    x = 395,903.87

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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.