Home / 753,176.45-1,039,391.69-413,644.70

Finding the Fourth Proportional to 753,176.45, 1,039,391.69 and 413,644.70

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Solution

The fourth proportional to 753,176.45, 1,039,391.69 and 413,644.70 is: 570,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,176.45 : 1,039,391.69 = 413,644.70 : x
  2. Step 2: Convert to fraction form
    753,176.45/1,039,391.69 = 413,644.70/x
  3. Step 3: Cross multiply
    753,176.45x = 1,039,391.69 × 413,644.70
  4. Step 4: Simplify right side
    753,176.45x = 429,938,856,527.36
  5. Step 5: Solve for x
    x = 429,938,856,527.36/753,176.45
  6. Step 6: Final answer
    x = 570,834.18

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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.