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Finding the Fourth Proportional to 446,937.20, 670,405.80 and 397,948.40

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Solution

The fourth proportional to 446,937.20, 670,405.80 and 397,948.40 is: 596,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,937.20 : 670,405.80 = 397,948.40 : x
  2. Step 2: Convert to fraction form
    446,937.20/670,405.80 = 397,948.40/x
  3. Step 3: Cross multiply
    446,937.20x = 670,405.80 × 397,948.40
  4. Step 4: Simplify right side
    446,937.20x = 266,786,915,460.72
  5. Step 5: Solve for x
    x = 266,786,915,460.72/446,937.20
  6. Step 6: Final answer
    x = 596,922.60

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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.