Home / 458,975.77-687,971.44-221,992.45

Finding the Fourth Proportional to 458,975.77, 687,971.44 and 221,992.45

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Solution

The fourth proportional to 458,975.77, 687,971.44 and 221,992.45 is: 332,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,975.77 : 687,971.44 = 221,992.45 : x
  2. Step 2: Convert to fraction form
    458,975.77/687,971.44 = 221,992.45/x
  3. Step 3: Cross multiply
    458,975.77x = 687,971.44 × 221,992.45
  4. Step 4: Simplify right side
    458,975.77x = 152,724,464,053.19
  5. Step 5: Solve for x
    x = 152,724,464,053.19/458,975.77
  6. Step 6: Final answer
    x = 332,750.60

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1.5x scale

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.