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Finding the Fourth Proportional to 436,271.80, 654,407.70 and 288,527.80

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Solution

The fourth proportional to 436,271.80, 654,407.70 and 288,527.80 is: 432,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,271.80 : 654,407.70 = 288,527.80 : x
  2. Step 2: Convert to fraction form
    436,271.80/654,407.70 = 288,527.80/x
  3. Step 3: Cross multiply
    436,271.80x = 654,407.70 × 288,527.80
  4. Step 4: Simplify right side
    436,271.80x = 188,814,813,984.06
  5. Step 5: Solve for x
    x = 188,814,813,984.06/436,271.80
  6. Step 6: Final answer
    x = 432,791.70

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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.