Home / 2,920,278.80-4,380,418.20-2,117,795.60

Finding the Fourth Proportional to 2,920,278.80, 4,380,418.20 and 2,117,795.60

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Solution

The fourth proportional to 2,920,278.80, 4,380,418.20 and 2,117,795.60 is: 3,176,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,278.80 : 4,380,418.20 = 2,117,795.60 : x
  2. Step 2: Convert to fraction form
    2,920,278.80/4,380,418.20 = 2,117,795.60/x
  3. Step 3: Cross multiply
    2,920,278.80x = 4,380,418.20 × 2,117,795.60
  4. Step 4: Simplify right side
    2,920,278.80x = 9,276,830,390,119.92
  5. Step 5: Solve for x
    x = 9,276,830,390,119.92/2,920,278.80
  6. Step 6: Final answer
    x = 3,176,693.40

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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.