Home / 1,000,418.88-1,380,654.72-570,708.48

Finding the Fourth Proportional to 1,000,418.88, 1,380,654.72 and 570,708.48

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Solution

The fourth proportional to 1,000,418.88, 1,380,654.72 and 570,708.48 is: 787,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,418.88 : 1,380,654.72 = 570,708.48 : x
  2. Step 2: Convert to fraction form
    1,000,418.88/1,380,654.72 = 570,708.48/x
  3. Step 3: Cross multiply
    1,000,418.88x = 1,380,654.72 × 570,708.48
  4. Step 4: Simplify right side
    1,000,418.88x = 787,951,356,656.03
  5. Step 5: Solve for x
    x = 787,951,356,656.03/1,000,418.88
  6. Step 6: Final answer
    x = 787,621.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.