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Finding the Fourth Proportional to 400,425.60, 600,461.28 and 119,890.56

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Solution

The fourth proportional to 400,425.60, 600,461.28 and 119,890.56 is: 179,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,425.60 : 600,461.28 = 119,890.56 : x
  2. Step 2: Convert to fraction form
    400,425.60/600,461.28 = 119,890.56/x
  3. Step 3: Cross multiply
    400,425.60x = 600,461.28 × 119,890.56
  4. Step 4: Simplify right side
    400,425.60x = 71,989,639,117.52
  5. Step 5: Solve for x
    x = 71,989,639,117.52/400,425.60
  6. Step 6: Final answer
    x = 179,782.81

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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.