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Finding the Fourth Proportional to 446,858.40, 668,732.40 and 306,890.40

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Solution

The fourth proportional to 446,858.40, 668,732.40 and 306,890.40 is: 459,267.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,858.40 : 668,732.40 = 306,890.40 : x
  2. Step 2: Convert to fraction form
    446,858.40/668,732.40 = 306,890.40/x
  3. Step 3: Cross multiply
    446,858.40x = 668,732.40 × 306,890.40
  4. Step 4: Simplify right side
    446,858.40x = 205,227,553,728.96
  5. Step 5: Solve for x
    x = 205,227,553,728.96/446,858.40
  6. Step 6: Final answer
    x = 459,267.53

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1.5x scale

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.