Home / 642,287.07-886,649.00-458,664.03

Finding the Fourth Proportional to 642,287.07, 886,649.00 and 458,664.03

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Solution

The fourth proportional to 642,287.07, 886,649.00 and 458,664.03 is: 633,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,287.07 : 886,649.00 = 458,664.03 : x
  2. Step 2: Convert to fraction form
    642,287.07/886,649.00 = 458,664.03/x
  3. Step 3: Cross multiply
    642,287.07x = 886,649.00 × 458,664.03
  4. Step 4: Simplify right side
    642,287.07x = 406,674,001,242.15
  5. Step 5: Solve for x
    x = 406,674,001,242.15/642,287.07
  6. Step 6: Final answer
    x = 633,165.48

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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.