Home / 691,725.40-1,037,588.10-424,619.80

Finding the Fourth Proportional to 691,725.40, 1,037,588.10 and 424,619.80

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Solution

The fourth proportional to 691,725.40, 1,037,588.10 and 424,619.80 is: 636,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,725.40 : 1,037,588.10 = 424,619.80 : x
  2. Step 2: Convert to fraction form
    691,725.40/1,037,588.10 = 424,619.80/x
  3. Step 3: Cross multiply
    691,725.40x = 1,037,588.10 × 424,619.80
  4. Step 4: Simplify right side
    691,725.40x = 440,580,451,504.38
  5. Step 5: Solve for x
    x = 440,580,451,504.38/691,725.40
  6. Step 6: Final answer
    x = 636,929.70

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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.