Home / 918,392.21-1,267,396.38-504,946.43

Finding the Fourth Proportional to 918,392.21, 1,267,396.38 and 504,946.43

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Solution

The fourth proportional to 918,392.21, 1,267,396.38 and 504,946.43 is: 696,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,392.21 : 1,267,396.38 = 504,946.43 : x
  2. Step 2: Convert to fraction form
    918,392.21/1,267,396.38 = 504,946.43/x
  3. Step 3: Cross multiply
    918,392.21x = 1,267,396.38 × 504,946.43
  4. Step 4: Simplify right side
    918,392.21x = 639,967,280,166.29
  5. Step 5: Solve for x
    x = 639,967,280,166.29/918,392.21
  6. Step 6: Final answer
    x = 696,834.40

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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.