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Finding the Fourth Proportional to 405,770.40, 607,273.20 and 405,770.40

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Solution

The fourth proportional to 405,770.40, 607,273.20 and 405,770.40 is: 607,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,770.40 : 607,273.20 = 405,770.40 : x
  2. Step 2: Convert to fraction form
    405,770.40/607,273.20 = 405,770.40/x
  3. Step 3: Cross multiply
    405,770.40x = 607,273.20 × 405,770.40
  4. Step 4: Simplify right side
    405,770.40x = 246,413,489,273.28
  5. Step 5: Solve for x
    x = 246,413,489,273.28/405,770.40
  6. Step 6: Final answer
    x = 607,273.20

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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.