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Finding the Fourth Proportional to 607,310.72, 910,356.41 and 207,678.06

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Solution

The fourth proportional to 607,310.72, 910,356.41 and 207,678.06 is: 311,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,310.72 : 910,356.41 = 207,678.06 : x
  2. Step 2: Convert to fraction form
    607,310.72/910,356.41 = 207,678.06/x
  3. Step 3: Cross multiply
    607,310.72x = 910,356.41 × 207,678.06
  4. Step 4: Simplify right side
    607,310.72x = 189,061,053,137.37
  5. Step 5: Solve for x
    x = 189,061,053,137.37/607,310.72
  6. Step 6: Final answer
    x = 311,308.61

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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.