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Finding the Fourth Proportional to 576,802.56, 796,033.88 and 318,702

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Solution

The fourth proportional to 576,802.56, 796,033.88 and 318,702 is: 439,834.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,802.56 : 796,033.88 = 318,702 : x
  2. Step 2: Convert to fraction form
    576,802.56/796,033.88 = 318,702/x
  3. Step 3: Cross multiply
    576,802.56x = 796,033.88 × 318,702
  4. Step 4: Simplify right side
    576,802.56x = 253,697,589,623.76
  5. Step 5: Solve for x
    x = 253,697,589,623.76/576,802.56
  6. Step 6: Final answer
    x = 439,834.37

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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.