Home / 3,347,354.70-4,620,534.21-1,989,211.50

Finding the Fourth Proportional to 3,347,354.70, 4,620,534.21 and 1,989,211.50

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Solution

The fourth proportional to 3,347,354.70, 4,620,534.21 and 1,989,211.50 is: 2,745,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347,354.70 : 4,620,534.21 = 1,989,211.50 : x
  2. Step 2: Convert to fraction form
    3,347,354.70/4,620,534.21 = 1,989,211.50/x
  3. Step 3: Cross multiply
    3,347,354.70x = 4,620,534.21 × 1,989,211.50
  4. Step 4: Simplify right side
    3,347,354.70x = 9,191,219,786,675.41
  5. Step 5: Solve for x
    x = 9,191,219,786,675.41/3,347,354.70
  6. Step 6: Final answer
    x = 2,745,815.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.