Home / 689,504.80-1,034,257.20-476,928.40

Finding the Fourth Proportional to 689,504.80, 1,034,257.20 and 476,928.40

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Solution

The fourth proportional to 689,504.80, 1,034,257.20 and 476,928.40 is: 715,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,504.80 : 1,034,257.20 = 476,928.40 : x
  2. Step 2: Convert to fraction form
    689,504.80/1,034,257.20 = 476,928.40/x
  3. Step 3: Cross multiply
    689,504.80x = 1,034,257.20 × 476,928.40
  4. Step 4: Simplify right side
    689,504.80x = 493,266,631,584.48
  5. Step 5: Solve for x
    x = 493,266,631,584.48/689,504.80
  6. Step 6: Final answer
    x = 715,392.60

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Similar ratio
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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.