Home / 830,178.41-1,243,765.85-381,274.79

Finding the Fourth Proportional to 830,178.41, 1,243,765.85 and 381,274.79

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Solution

The fourth proportional to 830,178.41, 1,243,765.85 and 381,274.79 is: 571,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,178.41 : 1,243,765.85 = 381,274.79 : x
  2. Step 2: Convert to fraction form
    830,178.41/1,243,765.85 = 381,274.79/x
  3. Step 3: Cross multiply
    830,178.41x = 1,243,765.85 × 381,274.79
  4. Step 4: Simplify right side
    830,178.41x = 474,216,555,142.72
  5. Step 5: Solve for x
    x = 474,216,555,142.72/830,178.41
  6. Step 6: Final answer
    x = 571,222.47

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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.