Home / 457,075.04-686,054.82-220,584.20

Finding the Fourth Proportional to 457,075.04, 686,054.82 and 220,584.20

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Solution

The fourth proportional to 457,075.04, 686,054.82 and 220,584.20 is: 331,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,075.04 : 686,054.82 = 220,584.20 : x
  2. Step 2: Convert to fraction form
    457,075.04/686,054.82 = 220,584.20/x
  3. Step 3: Cross multiply
    457,075.04x = 686,054.82 × 220,584.20
  4. Step 4: Simplify right side
    457,075.04x = 151,332,853,625.84
  5. Step 5: Solve for x
    x = 151,332,853,625.84/457,075.04
  6. Step 6: Final answer
    x = 331,089.73

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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.