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Finding the Fourth Proportional to 908,355.41, 1,362,487.81 and 339,694.70

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Solution

The fourth proportional to 908,355.41, 1,362,487.81 and 339,694.70 is: 509,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,355.41 : 1,362,487.81 = 339,694.70 : x
  2. Step 2: Convert to fraction form
    908,355.41/1,362,487.81 = 339,694.70/x
  3. Step 3: Cross multiply
    908,355.41x = 1,362,487.81 × 339,694.70
  4. Step 4: Simplify right side
    908,355.41x = 462,829,879,360.69
  5. Step 5: Solve for x
    x = 462,829,879,360.69/908,355.41
  6. Step 6: Final answer
    x = 509,525.10

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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.