Home / 446,911.20-670,366.80-397,922.40

Finding the Fourth Proportional to 446,911.20, 670,366.80 and 397,922.40

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Solution

The fourth proportional to 446,911.20, 670,366.80 and 397,922.40 is: 596,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,911.20 : 670,366.80 = 397,922.40 : x
  2. Step 2: Convert to fraction form
    446,911.20/670,366.80 = 397,922.40/x
  3. Step 3: Cross multiply
    446,911.20x = 670,366.80 × 397,922.40
  4. Step 4: Simplify right side
    446,911.20x = 266,753,965,936.32
  5. Step 5: Solve for x
    x = 266,753,965,936.32/446,911.20
  6. Step 6: Final answer
    x = 596,883.60

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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.