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Finding the Fourth Proportional to 622,954.40, 860,050.51 and 408,468.62

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Solution

The fourth proportional to 622,954.40, 860,050.51 and 408,468.62 is: 563,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,954.40 : 860,050.51 = 408,468.62 : x
  2. Step 2: Convert to fraction form
    622,954.40/860,050.51 = 408,468.62/x
  3. Step 3: Cross multiply
    622,954.40x = 860,050.51 × 408,468.62
  4. Step 4: Simplify right side
    622,954.40x = 351,303,646,078.95
  5. Step 5: Solve for x
    x = 351,303,646,078.95/622,954.40
  6. Step 6: Final answer
    x = 563,931.56

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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.