Home / 402,218.64-602,511.48-313,105.68

Finding the Fourth Proportional to 402,218.64, 602,511.48 and 313,105.68

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Solution

The fourth proportional to 402,218.64, 602,511.48 and 313,105.68 is: 469,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,218.64 : 602,511.48 = 313,105.68 : x
  2. Step 2: Convert to fraction form
    402,218.64/602,511.48 = 313,105.68/x
  3. Step 3: Cross multiply
    402,218.64x = 602,511.48 × 313,105.68
  4. Step 4: Simplify right side
    402,218.64x = 188,649,766,653.21
  5. Step 5: Solve for x
    x = 188,649,766,653.21/402,218.64
  6. Step 6: Final answer
    x = 469,022.93

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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.