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Finding the Fourth Proportional to 436,154.80, 654,232.20 and 432,007.60

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Solution

The fourth proportional to 436,154.80, 654,232.20 and 432,007.60 is: 648,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,154.80 : 654,232.20 = 432,007.60 : x
  2. Step 2: Convert to fraction form
    436,154.80/654,232.20 = 432,007.60/x
  3. Step 3: Cross multiply
    436,154.80x = 654,232.20 × 432,007.60
  4. Step 4: Simplify right side
    436,154.80x = 282,633,282,564.72
  5. Step 5: Solve for x
    x = 282,633,282,564.72/436,154.80
  6. Step 6: Final answer
    x = 648,011.40

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1.5x scale

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.