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Finding the Fourth Proportional to 678,762.24, 936,694.08 and 376,956.24

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Solution

The fourth proportional to 678,762.24, 936,694.08 and 376,956.24 is: 520,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,762.24 : 936,694.08 = 376,956.24 : x
  2. Step 2: Convert to fraction form
    678,762.24/936,694.08 = 376,956.24/x
  3. Step 3: Cross multiply
    678,762.24x = 936,694.08 × 376,956.24
  4. Step 4: Simplify right side
    678,762.24x = 353,092,678,427.06
  5. Step 5: Solve for x
    x = 353,092,678,427.06/678,762.24
  6. Step 6: Final answer
    x = 520,200.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.