Home / 624,246,794.92-860,770,378.47-397,827,278.72

Finding the Fourth Proportional to 624,246,794.92, 860,770,378.47 and 397,827,278.72

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Solution

The fourth proportional to 624,246,794.92, 860,770,378.47 and 397,827,278.72 is: 548,561,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,246,794.92 : 860,770,378.47 = 397,827,278.72 : x
  2. Step 2: Convert to fraction form
    624,246,794.92/860,770,378.47 = 397,827,278.72/x
  3. Step 3: Cross multiply
    624,246,794.92x = 860,770,378.47 × 397,827,278.72
  4. Step 4: Simplify right side
    624,246,794.92x = 342,437,937,269,504,640
  5. Step 5: Solve for x
    x = 342,437,937,269,504,640/624,246,794.92
  6. Step 6: Final answer
    x = 548,561,786.87

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1.5x scale

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.