Home / 786,673.80-1,180,010.70-449,584.20

Finding the Fourth Proportional to 786,673.80, 1,180,010.70 and 449,584.20

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Solution

The fourth proportional to 786,673.80, 1,180,010.70 and 449,584.20 is: 674,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,673.80 : 1,180,010.70 = 449,584.20 : x
  2. Step 2: Convert to fraction form
    786,673.80/1,180,010.70 = 449,584.20/x
  3. Step 3: Cross multiply
    786,673.80x = 1,180,010.70 × 449,584.20
  4. Step 4: Simplify right side
    786,673.80x = 530,514,166,550.94
  5. Step 5: Solve for x
    x = 530,514,166,550.94/786,673.80
  6. Step 6: Final answer
    x = 674,376.30

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Double scale
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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.