Home / 1,219,080-1,828,474.38-320,591.76

Finding the Fourth Proportional to 1,219,080, 1,828,474.38 and 320,591.76

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Solution

The fourth proportional to 1,219,080, 1,828,474.38 and 320,591.76 is: 480,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,080 : 1,828,474.38 = 320,591.76 : x
  2. Step 2: Convert to fraction form
    1,219,080/1,828,474.38 = 320,591.76/x
  3. Step 3: Cross multiply
    1,219,080x = 1,828,474.38 × 320,591.76
  4. Step 4: Simplify right side
    1,219,080x = 586,193,819,599.11
  5. Step 5: Solve for x
    x = 586,193,819,599.11/1,219,080
  6. Step 6: Final answer
    x = 480,849.35

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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.