Home / 586,917.64-879,588.06-320,278.60

Finding the Fourth Proportional to 586,917.64, 879,588.06 and 320,278.60

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Solution

The fourth proportional to 586,917.64, 879,588.06 and 320,278.60 is: 479,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,917.64 : 879,588.06 = 320,278.60 : x
  2. Step 2: Convert to fraction form
    586,917.64/879,588.06 = 320,278.60/x
  3. Step 3: Cross multiply
    586,917.64x = 879,588.06 × 320,278.60
  4. Step 4: Simplify right side
    586,917.64x = 281,713,232,433.52
  5. Step 5: Solve for x
    x = 281,713,232,433.52/586,917.64
  6. Step 6: Final answer
    x = 479,987.67

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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.