Home / 354,350.18-531,774.33-320,470.81

Finding the Fourth Proportional to 354,350.18, 531,774.33 and 320,470.81

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Solution

The fourth proportional to 354,350.18, 531,774.33 and 320,470.81 is: 480,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350.18 : 531,774.33 = 320,470.81 : x
  2. Step 2: Convert to fraction form
    354,350.18/531,774.33 = 320,470.81/x
  3. Step 3: Cross multiply
    354,350.18x = 531,774.33 × 320,470.81
  4. Step 4: Simplify right side
    354,350.18x = 170,418,148,942.87
  5. Step 5: Solve for x
    x = 170,418,148,942.87/354,350.18
  6. Step 6: Final answer
    x = 480,931.47

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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.