Home / 3,549,720.80-5,324,581.20-1,421,332.40

Finding the Fourth Proportional to 3,549,720.80, 5,324,581.20 and 1,421,332.40

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Solution

The fourth proportional to 3,549,720.80, 5,324,581.20 and 1,421,332.40 is: 2,131,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549,720.80 : 5,324,581.20 = 1,421,332.40 : x
  2. Step 2: Convert to fraction form
    3,549,720.80/5,324,581.20 = 1,421,332.40/x
  3. Step 3: Cross multiply
    3,549,720.80x = 5,324,581.20 × 1,421,332.40
  4. Step 4: Simplify right side
    3,549,720.80x = 7,567,999,775,990.88
  5. Step 5: Solve for x
    x = 7,567,999,775,990.88/3,549,720.80
  6. Step 6: Final answer
    x = 2,131,998.60

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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.