Home / 3,139,415.40-4,709,123.10-1,119,939.60

Finding the Fourth Proportional to 3,139,415.40, 4,709,123.10 and 1,119,939.60

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Solution

The fourth proportional to 3,139,415.40, 4,709,123.10 and 1,119,939.60 is: 1,679,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,415.40 : 4,709,123.10 = 1,119,939.60 : x
  2. Step 2: Convert to fraction form
    3,139,415.40/4,709,123.10 = 1,119,939.60/x
  3. Step 3: Cross multiply
    3,139,415.40x = 4,709,123.10 × 1,119,939.60
  4. Step 4: Simplify right side
    3,139,415.40x = 5,273,933,440,964.76
  5. Step 5: Solve for x
    x = 5,273,933,440,964.76/3,139,415.40
  6. Step 6: Final answer
    x = 1,679,909.40

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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.