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Finding the Fourth Proportional to 622,630.80, 933,338.70 and 319,024.98

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Solution

The fourth proportional to 622,630.80, 933,338.70 and 319,024.98 is: 478,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,630.80 : 933,338.70 = 319,024.98 : x
  2. Step 2: Convert to fraction form
    622,630.80/933,338.70 = 319,024.98/x
  3. Step 3: Cross multiply
    622,630.80x = 933,338.70 × 319,024.98
  4. Step 4: Simplify right side
    622,630.80x = 297,758,360,100.73
  5. Step 5: Solve for x
    x = 297,758,360,100.73/622,630.80
  6. Step 6: Final answer
    x = 478,226.20

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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.