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Finding the Fourth Proportional to 468,000.20, 702,000.30 and 449,629.40

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Solution

The fourth proportional to 468,000.20, 702,000.30 and 449,629.40 is: 674,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,000.20 : 702,000.30 = 449,629.40 : x
  2. Step 2: Convert to fraction form
    468,000.20/702,000.30 = 449,629.40/x
  3. Step 3: Cross multiply
    468,000.20x = 702,000.30 × 449,629.40
  4. Step 4: Simplify right side
    468,000.20x = 315,639,973,688.82
  5. Step 5: Solve for x
    x = 315,639,973,688.82/468,000.20
  6. Step 6: Final answer
    x = 674,444.10

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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.