Home / 3,120,375.40-4,681,016.70-1,323,255.40

Finding the Fourth Proportional to 3,120,375.40, 4,681,016.70 and 1,323,255.40

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Solution

The fourth proportional to 3,120,375.40, 4,681,016.70 and 1,323,255.40 is: 1,985,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,375.40 : 4,681,016.70 = 1,323,255.40 : x
  2. Step 2: Convert to fraction form
    3,120,375.40/4,681,016.70 = 1,323,255.40/x
  3. Step 3: Cross multiply
    3,120,375.40x = 4,681,016.70 × 1,323,255.40
  4. Step 4: Simplify right side
    3,120,375.40x = 6,194,180,625,765.18
  5. Step 5: Solve for x
    x = 6,194,180,625,765.18/3,120,375.40
  6. Step 6: Final answer
    x = 1,985,075.46

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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.