Home / 2,156,820.80-3,235,384.80-660,910.40

Finding the Fourth Proportional to 2,156,820.80, 3,235,384.80 and 660,910.40

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Solution

The fourth proportional to 2,156,820.80, 3,235,384.80 and 660,910.40 is: 991,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,820.80 : 3,235,384.80 = 660,910.40 : x
  2. Step 2: Convert to fraction form
    2,156,820.80/3,235,384.80 = 660,910.40/x
  3. Step 3: Cross multiply
    2,156,820.80x = 3,235,384.80 × 660,910.40
  4. Step 4: Simplify right side
    2,156,820.80x = 2,138,299,462,321.92
  5. Step 5: Solve for x
    x = 2,138,299,462,321.92/2,156,820.80
  6. Step 6: Final answer
    x = 991,412.67

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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.