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Finding the Fourth Proportional to 446,902.20, 670,353.30 and 397,913.40

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Solution

The fourth proportional to 446,902.20, 670,353.30 and 397,913.40 is: 596,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,902.20 : 670,353.30 = 397,913.40 : x
  2. Step 2: Convert to fraction form
    446,902.20/670,353.30 = 397,913.40/x
  3. Step 3: Cross multiply
    446,902.20x = 670,353.30 × 397,913.40
  4. Step 4: Simplify right side
    446,902.20x = 266,742,560,804.22
  5. Step 5: Solve for x
    x = 266,742,560,804.22/446,902.20
  6. Step 6: Final answer
    x = 596,870.10

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Similar ratio
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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.