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Finding the Fourth Proportional to 617,816.70, 927,243.45 and 302,543.10

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Solution

The fourth proportional to 617,816.70, 927,243.45 and 302,543.10 is: 454,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,816.70 : 927,243.45 = 302,543.10 : x
  2. Step 2: Convert to fraction form
    617,816.70/927,243.45 = 302,543.10/x
  3. Step 3: Cross multiply
    617,816.70x = 927,243.45 × 302,543.10
  4. Step 4: Simplify right side
    617,816.70x = 280,531,107,817.70
  5. Step 5: Solve for x
    x = 280,531,107,817.70/617,816.70
  6. Step 6: Final answer
    x = 454,068.51

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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.