Home / 888,279.40-1,225,758.18-485,871.40

Finding the Fourth Proportional to 888,279.40, 1,225,758.18 and 485,871.40

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Solution

The fourth proportional to 888,279.40, 1,225,758.18 and 485,871.40 is: 670,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,279.40 : 1,225,758.18 = 485,871.40 : x
  2. Step 2: Convert to fraction form
    888,279.40/1,225,758.18 = 485,871.40/x
  3. Step 3: Cross multiply
    888,279.40x = 1,225,758.18 × 485,871.40
  4. Step 4: Simplify right side
    888,279.40x = 595,560,842,978.05
  5. Step 5: Solve for x
    x = 595,560,842,978.05/888,279.40
  6. Step 6: Final answer
    x = 670,465.67

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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.