Home / 1,543,648.80-2,129,556.24-931,460.40

Finding the Fourth Proportional to 1,543,648.80, 2,129,556.24 and 931,460.40

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Solution

The fourth proportional to 1,543,648.80, 2,129,556.24 and 931,460.40 is: 1,285,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,648.80 : 2,129,556.24 = 931,460.40 : x
  2. Step 2: Convert to fraction form
    1,543,648.80/2,129,556.24 = 931,460.40/x
  3. Step 3: Cross multiply
    1,543,648.80x = 2,129,556.24 × 931,460.40
  4. Step 4: Simplify right side
    1,543,648.80x = 1,983,597,307,132.90
  5. Step 5: Solve for x
    x = 1,983,597,307,132.90/1,543,648.80
  6. Step 6: Final answer
    x = 1,285,005.57

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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.