Home / 432,579.69-648,869.40-314,999.28

Finding the Fourth Proportional to 432,579.69, 648,869.40 and 314,999.28

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Solution

The fourth proportional to 432,579.69, 648,869.40 and 314,999.28 is: 472,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,579.69 : 648,869.40 = 314,999.28 : x
  2. Step 2: Convert to fraction form
    432,579.69/648,869.40 = 314,999.28/x
  3. Step 3: Cross multiply
    432,579.69x = 648,869.40 × 314,999.28
  4. Step 4: Simplify right side
    432,579.69x = 204,393,393,814.03
  5. Step 5: Solve for x
    x = 204,393,393,814.03/432,579.69
  6. Step 6: Final answer
    x = 472,498.82

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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.