Home / 1,252,743.61-1,728,790.76-679,783.76

Finding the Fourth Proportional to 1,252,743.61, 1,728,790.76 and 679,783.76

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Solution

The fourth proportional to 1,252,743.61, 1,728,790.76 and 679,783.76 is: 938,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,743.61 : 1,728,790.76 = 679,783.76 : x
  2. Step 2: Convert to fraction form
    1,252,743.61/1,728,790.76 = 679,783.76/x
  3. Step 3: Cross multiply
    1,252,743.61x = 1,728,790.76 × 679,783.76
  4. Step 4: Simplify right side
    1,252,743.61x = 1,175,203,883,086.06
  5. Step 5: Solve for x
    x = 1,175,203,883,086.06/1,252,743.61
  6. Step 6: Final answer
    x = 938,104.08

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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.