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Finding the Fourth Proportional to 802,158.08, 1,203,389 and 322,423.28

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Solution

The fourth proportional to 802,158.08, 1,203,389 and 322,423.28 is: 483,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,158.08 : 1,203,389 = 322,423.28 : x
  2. Step 2: Convert to fraction form
    802,158.08/1,203,389 = 322,423.28/x
  3. Step 3: Cross multiply
    802,158.08x = 1,203,389 × 322,423.28
  4. Step 4: Simplify right side
    802,158.08x = 388,000,628,495.92
  5. Step 5: Solve for x
    x = 388,000,628,495.92/802,158.08
  6. Step 6: Final answer
    x = 483,695.97

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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.