Home / 415,530.24-573,809.40-313,380.72

Finding the Fourth Proportional to 415,530.24, 573,809.40 and 313,380.72

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Solution

The fourth proportional to 415,530.24, 573,809.40 and 313,380.72 is: 432,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,530.24 : 573,809.40 = 313,380.72 : x
  2. Step 2: Convert to fraction form
    415,530.24/573,809.40 = 313,380.72/x
  3. Step 3: Cross multiply
    415,530.24x = 573,809.40 × 313,380.72
  4. Step 4: Simplify right side
    415,530.24x = 179,820,802,914.77
  5. Step 5: Solve for x
    x = 179,820,802,914.77/415,530.24
  6. Step 6: Final answer
    x = 432,750.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.