Home / 490,815.36-736,086.96-310,783.68

Finding the Fourth Proportional to 490,815.36, 736,086.96 and 310,783.68

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Solution

The fourth proportional to 490,815.36, 736,086.96 and 310,783.68 is: 466,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,815.36 : 736,086.96 = 310,783.68 : x
  2. Step 2: Convert to fraction form
    490,815.36/736,086.96 = 310,783.68/x
  3. Step 3: Cross multiply
    490,815.36x = 736,086.96 × 310,783.68
  4. Step 4: Simplify right side
    490,815.36x = 228,763,814,228.81
  5. Step 5: Solve for x
    x = 228,763,814,228.81/490,815.36
  6. Step 6: Final answer
    x = 466,089.35

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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.