Home / 2,140,809.60-3,211,214.40-879,542.40

Finding the Fourth Proportional to 2,140,809.60, 3,211,214.40 and 879,542.40

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Solution

The fourth proportional to 2,140,809.60, 3,211,214.40 and 879,542.40 is: 1,319,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,809.60 : 3,211,214.40 = 879,542.40 : x
  2. Step 2: Convert to fraction form
    2,140,809.60/3,211,214.40 = 879,542.40/x
  3. Step 3: Cross multiply
    2,140,809.60x = 3,211,214.40 × 879,542.40
  4. Step 4: Simplify right side
    2,140,809.60x = 2,824,399,220,290.56
  5. Step 5: Solve for x
    x = 2,824,399,220,290.56/2,140,809.60
  6. Step 6: Final answer
    x = 1,319,313.60

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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.