Home / 421,742.90-631,914.48-296,821.46

Finding the Fourth Proportional to 421,742.90, 631,914.48 and 296,821.46

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Solution

The fourth proportional to 421,742.90, 631,914.48 and 296,821.46 is: 444,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,742.90 : 631,914.48 = 296,821.46 : x
  2. Step 2: Convert to fraction form
    421,742.90/631,914.48 = 296,821.46/x
  3. Step 3: Cross multiply
    421,742.90x = 631,914.48 × 296,821.46
  4. Step 4: Simplify right side
    421,742.90x = 187,565,778,548.74
  5. Step 5: Solve for x
    x = 187,565,778,548.74/421,742.90
  6. Step 6: Final answer
    x = 444,739.62

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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.