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Finding the Fourth Proportional to 647,977.35, 894,191.49 and 361,490.07

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Solution

The fourth proportional to 647,977.35, 894,191.49 and 361,490.07 is: 498,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,977.35 : 894,191.49 = 361,490.07 : x
  2. Step 2: Convert to fraction form
    647,977.35/894,191.49 = 361,490.07/x
  3. Step 3: Cross multiply
    647,977.35x = 894,191.49 × 361,490.07
  4. Step 4: Simplify right side
    647,977.35x = 323,241,344,313.50
  5. Step 5: Solve for x
    x = 323,241,344,313.50/647,977.35
  6. Step 6: Final answer
    x = 498,846.67

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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.