Home / 628,444.86-942,814.89-207,720.69

Finding the Fourth Proportional to 628,444.86, 942,814.89 and 207,720.69

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Solution

The fourth proportional to 628,444.86, 942,814.89 and 207,720.69 is: 311,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,444.86 : 942,814.89 = 207,720.69 : x
  2. Step 2: Convert to fraction form
    628,444.86/942,814.89 = 207,720.69/x
  3. Step 3: Cross multiply
    628,444.86x = 942,814.89 × 207,720.69
  4. Step 4: Simplify right side
    628,444.86x = 195,842,159,493.07
  5. Step 5: Solve for x
    x = 195,842,159,493.07/628,444.86
  6. Step 6: Final answer
    x = 311,629.82

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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.