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Finding the Fourth Proportional to 437,703.80, 656,166.90 and 288,015.80

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Solution

The fourth proportional to 437,703.80, 656,166.90 and 288,015.80 is: 431,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,703.80 : 656,166.90 = 288,015.80 : x
  2. Step 2: Convert to fraction form
    437,703.80/656,166.90 = 288,015.80/x
  3. Step 3: Cross multiply
    437,703.80x = 656,166.90 × 288,015.80
  4. Step 4: Simplify right side
    437,703.80x = 188,986,434,637.02
  5. Step 5: Solve for x
    x = 188,986,434,637.02/437,703.80
  6. Step 6: Final answer
    x = 431,767.86

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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.