Home / 6,315,378.78-8,715,228.90-3,414,768.90

Finding the Fourth Proportional to 6,315,378.78, 8,715,228.90 and 3,414,768.90

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Solution

The fourth proportional to 6,315,378.78, 8,715,228.90 and 3,414,768.90 is: 4,712,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315,378.78 : 8,715,228.90 = 3,414,768.90 : x
  2. Step 2: Convert to fraction form
    6,315,378.78/8,715,228.90 = 3,414,768.90/x
  3. Step 3: Cross multiply
    6,315,378.78x = 8,715,228.90 × 3,414,768.90
  4. Step 4: Simplify right side
    6,315,378.78x = 29,760,492,604,101.21
  5. Step 5: Solve for x
    x = 29,760,492,604,101.21/6,315,378.78
  6. Step 6: Final answer
    x = 4,712,384.43

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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.