Home / 753,917.12-1,040,392.20-414,385.28

Finding the Fourth Proportional to 753,917.12, 1,040,392.20 and 414,385.28

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Solution

The fourth proportional to 753,917.12, 1,040,392.20 and 414,385.28 is: 571,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,917.12 : 1,040,392.20 = 414,385.28 : x
  2. Step 2: Convert to fraction form
    753,917.12/1,040,392.20 = 414,385.28/x
  3. Step 3: Cross multiply
    753,917.12x = 1,040,392.20 × 414,385.28
  4. Step 4: Simplify right side
    753,917.12x = 431,123,213,106.82
  5. Step 5: Solve for x
    x = 431,123,213,106.82/753,917.12
  6. Step 6: Final answer
    x = 571,844.31

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1.5x scale

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.