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Finding the Fourth Proportional to 1,248,960, 1,873,440 and 460,992

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Solution

The fourth proportional to 1,248,960, 1,873,440 and 460,992 is: 691,488

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,960 : 1,873,440 = 460,992 : x
  2. Step 2: Convert to fraction form
    1,248,960/1,873,440 = 460,992/x
  3. Step 3: Cross multiply
    1,248,960x = 1,873,440 × 460,992
  4. Step 4: Simplify right side
    1,248,960x = 863,640,852,480
  5. Step 5: Solve for x
    x = 863,640,852,480/1,248,960
  6. Step 6: Final answer
    x = 691,488

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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.