Home / 401,815.96-602,724.02-313,135.80

Finding the Fourth Proportional to 401,815.96, 602,724.02 and 313,135.80

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Solution

The fourth proportional to 401,815.96, 602,724.02 and 313,135.80 is: 469,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,815.96 : 602,724.02 = 313,135.80 : x
  2. Step 2: Convert to fraction form
    401,815.96/602,724.02 = 313,135.80/x
  3. Step 3: Cross multiply
    401,815.96x = 602,724.02 × 313,135.80
  4. Step 4: Simplify right side
    401,815.96x = 188,734,468,181.92
  5. Step 5: Solve for x
    x = 188,734,468,181.92/401,815.96
  6. Step 6: Final answer
    x = 469,703.76

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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.