Home / 634,321.20-875,403.72-419,083.68

Finding the Fourth Proportional to 634,321.20, 875,403.72 and 419,083.68

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Solution

The fourth proportional to 634,321.20, 875,403.72 and 419,083.68 is: 578,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,321.20 : 875,403.72 = 419,083.68 : x
  2. Step 2: Convert to fraction form
    634,321.20/875,403.72 = 419,083.68/x
  3. Step 3: Cross multiply
    634,321.20x = 875,403.72 × 419,083.68
  4. Step 4: Simplify right side
    634,321.20x = 366,867,412,463.29
  5. Step 5: Solve for x
    x = 366,867,412,463.29/634,321.20
  6. Step 6: Final answer
    x = 578,362.21

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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.