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Finding the Fourth Proportional to 503,423.60, 755,718.60 and 303,969.20

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Solution

The fourth proportional to 503,423.60, 755,718.60 and 303,969.20 is: 456,305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,423.60 : 755,718.60 = 303,969.20 : x
  2. Step 2: Convert to fraction form
    503,423.60/755,718.60 = 303,969.20/x
  3. Step 3: Cross multiply
    503,423.60x = 755,718.60 × 303,969.20
  4. Step 4: Simplify right side
    503,423.60x = 229,715,178,267.12
  5. Step 5: Solve for x
    x = 229,715,178,267.12/503,423.60
  6. Step 6: Final answer
    x = 456,305.94

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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.