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Finding the Fourth Proportional to 620,907.89, 930,582.71 and 265,503.98

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Solution

The fourth proportional to 620,907.89, 930,582.71 and 265,503.98 is: 397,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,907.89 : 930,582.71 = 265,503.98 : x
  2. Step 2: Convert to fraction form
    620,907.89/930,582.71 = 265,503.98/x
  3. Step 3: Cross multiply
    620,907.89x = 930,582.71 × 265,503.98
  4. Step 4: Simplify right side
    620,907.89x = 247,073,407,243.75
  5. Step 5: Solve for x
    x = 247,073,407,243.75/620,907.89
  6. Step 6: Final answer
    x = 397,922.80

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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.