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Finding the Fourth Proportional to 578,322.40, 796,658.90 and 492,004.96

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Solution

The fourth proportional to 578,322.40, 796,658.90 and 492,004.96 is: 677,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,322.40 : 796,658.90 = 492,004.96 : x
  2. Step 2: Convert to fraction form
    578,322.40/796,658.90 = 492,004.96/x
  3. Step 3: Cross multiply
    578,322.40x = 796,658.90 × 492,004.96
  4. Step 4: Simplify right side
    578,322.40x = 391,960,130,228.14
  5. Step 5: Solve for x
    x = 391,960,130,228.14/578,322.40
  6. Step 6: Final answer
    x = 677,753.67

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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.