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Finding the Fourth Proportional to 425,091.60, 636,937.50 and 297,020.88

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Solution

The fourth proportional to 425,091.60, 636,937.50 and 297,020.88 is: 445,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,091.60 : 636,937.50 = 297,020.88 : x
  2. Step 2: Convert to fraction form
    425,091.60/636,937.50 = 297,020.88/x
  3. Step 3: Cross multiply
    425,091.60x = 636,937.50 × 297,020.88
  4. Step 4: Simplify right side
    425,091.60x = 189,183,736,755
  5. Step 5: Solve for x
    x = 189,183,736,755/425,091.60
  6. Step 6: Final answer
    x = 445,042.28

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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.