Home / 688,299.06-1,032,468.96-328,507.83

Finding the Fourth Proportional to 688,299.06, 1,032,468.96 and 328,507.83

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Solution

The fourth proportional to 688,299.06, 1,032,468.96 and 328,507.83 is: 492,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,299.06 : 1,032,468.96 = 328,507.83 : x
  2. Step 2: Convert to fraction form
    688,299.06/1,032,468.96 = 328,507.83/x
  3. Step 3: Cross multiply
    688,299.06x = 1,032,468.96 × 328,507.83
  4. Step 4: Simplify right side
    688,299.06x = 339,174,137,591.96
  5. Step 5: Solve for x
    x = 339,174,137,591.96/688,299.06
  6. Step 6: Final answer
    x = 492,771.47

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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.