Home / 374,450.20-561,675.30-285,876.70

Finding the Fourth Proportional to 374,450.20, 561,675.30 and 285,876.70

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Solution

The fourth proportional to 374,450.20, 561,675.30 and 285,876.70 is: 428,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,450.20 : 561,675.30 = 285,876.70 : x
  2. Step 2: Convert to fraction form
    374,450.20/561,675.30 = 285,876.70/x
  3. Step 3: Cross multiply
    374,450.20x = 561,675.30 × 285,876.70
  4. Step 4: Simplify right side
    374,450.20x = 160,569,881,235.51
  5. Step 5: Solve for x
    x = 160,569,881,235.51/374,450.20
  6. Step 6: Final answer
    x = 428,815.05

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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.