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Finding the Fourth Proportional to 612,803.48, 845,692.85 and 370,949.22

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Solution

The fourth proportional to 612,803.48, 845,692.85 and 370,949.22 is: 511,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,803.48 : 845,692.85 = 370,949.22 : x
  2. Step 2: Convert to fraction form
    612,803.48/845,692.85 = 370,949.22/x
  3. Step 3: Cross multiply
    612,803.48x = 845,692.85 × 370,949.22
  4. Step 4: Simplify right side
    612,803.48x = 313,709,103,994.45
  5. Step 5: Solve for x
    x = 313,709,103,994.45/612,803.48
  6. Step 6: Final answer
    x = 511,924.49

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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.