Home / 455,028.25-628,166.33-283,001.67

Finding the Fourth Proportional to 455,028.25, 628,166.33 and 283,001.67

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Solution

The fourth proportional to 455,028.25, 628,166.33 and 283,001.67 is: 390,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,028.25 : 628,166.33 = 283,001.67 : x
  2. Step 2: Convert to fraction form
    455,028.25/628,166.33 = 283,001.67/x
  3. Step 3: Cross multiply
    455,028.25x = 628,166.33 × 283,001.67
  4. Step 4: Simplify right side
    455,028.25x = 177,772,122,338.19
  5. Step 5: Solve for x
    x = 177,772,122,338.19/455,028.25
  6. Step 6: Final answer
    x = 390,683.70

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1.5x scale

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.