Home / 1,420,825.20-2,132,447.40-579,980.40

Finding the Fourth Proportional to 1,420,825.20, 2,132,447.40 and 579,980.40

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Solution

The fourth proportional to 1,420,825.20, 2,132,447.40 and 579,980.40 is: 870,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,825.20 : 2,132,447.40 = 579,980.40 : x
  2. Step 2: Convert to fraction form
    1,420,825.20/2,132,447.40 = 579,980.40/x
  3. Step 3: Cross multiply
    1,420,825.20x = 2,132,447.40 × 579,980.40
  4. Step 4: Simplify right side
    1,420,825.20x = 1,236,777,696,030.96
  5. Step 5: Solve for x
    x = 1,236,777,696,030.96/1,420,825.20
  6. Step 6: Final answer
    x = 870,464.36

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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.