Home / 753,179.46-1,039,395.84-413,647.68

Finding the Fourth Proportional to 753,179.46, 1,039,395.84 and 413,647.68

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Solution

The fourth proportional to 753,179.46, 1,039,395.84 and 413,647.68 is: 570,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,179.46 : 1,039,395.84 = 413,647.68 : x
  2. Step 2: Convert to fraction form
    753,179.46/1,039,395.84 = 413,647.68/x
  3. Step 3: Cross multiply
    753,179.46x = 1,039,395.84 × 413,647.68
  4. Step 4: Simplify right side
    753,179.46x = 429,943,677,817.65
  5. Step 5: Solve for x
    x = 429,943,677,817.65/753,179.46
  6. Step 6: Final answer
    x = 570,838.29

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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.