Home / 3,548,513.80-5,322,770.70-1,420,125.40

Finding the Fourth Proportional to 3,548,513.80, 5,322,770.70 and 1,420,125.40

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Solution

The fourth proportional to 3,548,513.80, 5,322,770.70 and 1,420,125.40 is: 2,130,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548,513.80 : 5,322,770.70 = 1,420,125.40 : x
  2. Step 2: Convert to fraction form
    3,548,513.80/5,322,770.70 = 1,420,125.40/x
  3. Step 3: Cross multiply
    3,548,513.80x = 5,322,770.70 × 1,420,125.40
  4. Step 4: Simplify right side
    3,548,513.80x = 7,559,001,869,445.78
  5. Step 5: Solve for x
    x = 7,559,001,869,445.78/3,548,513.80
  6. Step 6: Final answer
    x = 2,130,188.10

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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.