Home / 484,890.20-668,967.55-484,142.57

Finding the Fourth Proportional to 484,890.20, 668,967.55 and 484,142.57

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Solution

The fourth proportional to 484,890.20, 668,967.55 and 484,142.57 is: 667,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,890.20 : 668,967.55 = 484,142.57 : x
  2. Step 2: Convert to fraction form
    484,890.20/668,967.55 = 484,142.57/x
  3. Step 3: Cross multiply
    484,890.20x = 668,967.55 × 484,142.57
  4. Step 4: Simplify right side
    484,890.20x = 323,875,668,903.60
  5. Step 5: Solve for x
    x = 323,875,668,903.60/484,890.20
  6. Step 6: Final answer
    x = 667,936.10

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1.5x scale

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.