Home / 688,245.22-1,032,705.69-309,433.24

Finding the Fourth Proportional to 688,245.22, 1,032,705.69 and 309,433.24

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Solution

The fourth proportional to 688,245.22, 1,032,705.69 and 309,433.24 is: 464,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,245.22 : 1,032,705.69 = 309,433.24 : x
  2. Step 2: Convert to fraction form
    688,245.22/1,032,705.69 = 309,433.24/x
  3. Step 3: Cross multiply
    688,245.22x = 1,032,705.69 × 309,433.24
  4. Step 4: Simplify right side
    688,245.22x = 319,553,467,623.14
  5. Step 5: Solve for x
    x = 319,553,467,623.14/688,245.22
  6. Step 6: Final answer
    x = 464,301.76

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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.