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Finding the Fourth Proportional to 432,000.20, 603,400.60 and 432,000.20

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Solution

The fourth proportional to 432,000.20, 603,400.60 and 432,000.20 is: 603,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,000.20 : 603,400.60 = 432,000.20 : x
  2. Step 2: Convert to fraction form
    432,000.20/603,400.60 = 432,000.20/x
  3. Step 3: Cross multiply
    432,000.20x = 603,400.60 × 432,000.20
  4. Step 4: Simplify right side
    432,000.20x = 260,669,179,880.12
  5. Step 5: Solve for x
    x = 260,669,179,880.12/432,000.20
  6. Step 6: Final answer
    x = 603,400.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.