Home / 649,260.20-973,890.30-400,082.60

Finding the Fourth Proportional to 649,260.20, 973,890.30 and 400,082.60

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Solution

The fourth proportional to 649,260.20, 973,890.30 and 400,082.60 is: 600,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,260.20 : 973,890.30 = 400,082.60 : x
  2. Step 2: Convert to fraction form
    649,260.20/973,890.30 = 400,082.60/x
  3. Step 3: Cross multiply
    649,260.20x = 973,890.30 × 400,082.60
  4. Step 4: Simplify right side
    649,260.20x = 389,636,563,338.78
  5. Step 5: Solve for x
    x = 389,636,563,338.78/649,260.20
  6. Step 6: Final answer
    x = 600,123.90

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1.5x scale

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.