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Finding the Fourth Proportional to 656,136.92, 983,855.46 and 339,809.24

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Solution

The fourth proportional to 656,136.92, 983,855.46 and 339,809.24 is: 509,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,136.92 : 983,855.46 = 339,809.24 : x
  2. Step 2: Convert to fraction form
    656,136.92/983,855.46 = 339,809.24/x
  3. Step 3: Cross multiply
    656,136.92x = 983,855.46 × 339,809.24
  4. Step 4: Simplify right side
    656,136.92x = 334,323,176,132.45
  5. Step 5: Solve for x
    x = 334,323,176,132.45/656,136.92
  6. Step 6: Final answer
    x = 509,532.64

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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.