Home / 347,579.19-479,411.93-318,991.19

Finding the Fourth Proportional to 347,579.19, 479,411.93 and 318,991.19

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Solution

The fourth proportional to 347,579.19, 479,411.93 and 318,991.19 is: 439,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,579.19 : 479,411.93 = 318,991.19 : x
  2. Step 2: Convert to fraction form
    347,579.19/479,411.93 = 318,991.19/x
  3. Step 3: Cross multiply
    347,579.19x = 479,411.93 × 318,991.19
  4. Step 4: Simplify right side
    347,579.19x = 152,928,180,451.32
  5. Step 5: Solve for x
    x = 152,928,180,451.32/347,579.19
  6. Step 6: Final answer
    x = 439,980.83

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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.