Home / 745,676.28-1,029,033.36-406,144.80

Finding the Fourth Proportional to 745,676.28, 1,029,033.36 and 406,144.80

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Solution

The fourth proportional to 745,676.28, 1,029,033.36 and 406,144.80 is: 560,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,676.28 : 1,029,033.36 = 406,144.80 : x
  2. Step 2: Convert to fraction form
    745,676.28/1,029,033.36 = 406,144.80/x
  3. Step 3: Cross multiply
    745,676.28x = 1,029,033.36 × 406,144.80
  4. Step 4: Simplify right side
    745,676.28x = 417,936,548,190.53
  5. Step 5: Solve for x
    x = 417,936,548,190.53/745,676.28
  6. Step 6: Final answer
    x = 560,479.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.