Home / 1,559,905.40-2,336,358.90-1,279,969.40

Finding the Fourth Proportional to 1,559,905.40, 2,336,358.90 and 1,279,969.40

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Solution

The fourth proportional to 1,559,905.40, 2,336,358.90 and 1,279,969.40 is: 1,917,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,905.40 : 2,336,358.90 = 1,279,969.40 : x
  2. Step 2: Convert to fraction form
    1,559,905.40/2,336,358.90 = 1,279,969.40/x
  3. Step 3: Cross multiply
    1,559,905.40x = 2,336,358.90 × 1,279,969.40
  4. Step 4: Simplify right side
    1,559,905.40x = 2,990,467,899,417.66
  5. Step 5: Solve for x
    x = 2,990,467,899,417.66/1,559,905.40
  6. Step 6: Final answer
    x = 1,917,082.86

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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.