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Finding the Fourth Proportional to 425,089.57, 636,934.50 and 297,018.85

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Solution

The fourth proportional to 425,089.57, 636,934.50 and 297,018.85 is: 445,039.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,089.57 : 636,934.50 = 297,018.85 : x
  2. Step 2: Convert to fraction form
    425,089.57/636,934.50 = 297,018.85/x
  3. Step 3: Cross multiply
    425,089.57x = 636,934.50 × 297,018.85
  4. Step 4: Simplify right side
    425,089.57x = 189,181,552,715.33
  5. Step 5: Solve for x
    x = 189,181,552,715.33/425,089.57
  6. Step 6: Final answer
    x = 445,039.27

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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.