Home / 430,895.60-644,807.40-273,199.60

Finding the Fourth Proportional to 430,895.60, 644,807.40 and 273,199.60

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Solution

The fourth proportional to 430,895.60, 644,807.40 and 273,199.60 is: 408,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,895.60 : 644,807.40 = 273,199.60 : x
  2. Step 2: Convert to fraction form
    430,895.60/644,807.40 = 273,199.60/x
  3. Step 3: Cross multiply
    430,895.60x = 644,807.40 × 273,199.60
  4. Step 4: Simplify right side
    430,895.60x = 176,161,123,757.04
  5. Step 5: Solve for x
    x = 176,161,123,757.04/430,895.60
  6. Step 6: Final answer
    x = 408,825.53

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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.