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Finding the Fourth Proportional to 402,000.40, 603,000.60 and 380,227.60

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Solution

The fourth proportional to 402,000.40, 603,000.60 and 380,227.60 is: 570,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,000.40 : 603,000.60 = 380,227.60 : x
  2. Step 2: Convert to fraction form
    402,000.40/603,000.60 = 380,227.60/x
  3. Step 3: Cross multiply
    402,000.40x = 603,000.60 × 380,227.60
  4. Step 4: Simplify right side
    402,000.40x = 229,277,470,936.56
  5. Step 5: Solve for x
    x = 229,277,470,936.56/402,000.40
  6. Step 6: Final answer
    x = 570,341.40

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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.