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Finding the Fourth Proportional to 413,903.47, 621,289.57 and 366,819.79

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Solution

The fourth proportional to 413,903.47, 621,289.57 and 366,819.79 is: 550,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,903.47 : 621,289.57 = 366,819.79 : x
  2. Step 2: Convert to fraction form
    413,903.47/621,289.57 = 366,819.79/x
  3. Step 3: Cross multiply
    413,903.47x = 621,289.57 × 366,819.79
  4. Step 4: Simplify right side
    413,903.47x = 227,901,309,596.59
  5. Step 5: Solve for x
    x = 227,901,309,596.59/413,903.47
  6. Step 6: Final answer
    x = 550,614.64

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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.