Home / 972,980.89-1,458,981.34-324,327.42

Finding the Fourth Proportional to 972,980.89, 1,458,981.34 and 324,327.42

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Solution

The fourth proportional to 972,980.89, 1,458,981.34 and 324,327.42 is: 486,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,980.89 : 1,458,981.34 = 324,327.42 : x
  2. Step 2: Convert to fraction form
    972,980.89/1,458,981.34 = 324,327.42/x
  3. Step 3: Cross multiply
    972,980.89x = 1,458,981.34 × 324,327.42
  4. Step 4: Simplify right side
    972,980.89x = 473,187,653,830.34
  5. Step 5: Solve for x
    x = 473,187,653,830.34/972,980.89
  6. Step 6: Final answer
    x = 486,327.80

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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.