Home / 1,138,420.52-1,571,185.38-679,554.50

Finding the Fourth Proportional to 1,138,420.52, 1,571,185.38 and 679,554.50

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Solution

The fourth proportional to 1,138,420.52, 1,571,185.38 and 679,554.50 is: 937,883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,420.52 : 1,571,185.38 = 679,554.50 : x
  2. Step 2: Convert to fraction form
    1,138,420.52/1,571,185.38 = 679,554.50/x
  3. Step 3: Cross multiply
    1,138,420.52x = 1,571,185.38 × 679,554.50
  4. Step 4: Simplify right side
    1,138,420.52x = 1,067,706,095,313.21
  5. Step 5: Solve for x
    x = 1,067,706,095,313.21/1,138,420.52
  6. Step 6: Final answer
    x = 937,883.74

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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.