Home / 715,257.76-1,071,469.68-490,064.80

Finding the Fourth Proportional to 715,257.76, 1,071,469.68 and 490,064.80

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Solution

The fourth proportional to 715,257.76, 1,071,469.68 and 490,064.80 is: 734,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,257.76 : 1,071,469.68 = 490,064.80 : x
  2. Step 2: Convert to fraction form
    715,257.76/1,071,469.68 = 490,064.80/x
  3. Step 3: Cross multiply
    715,257.76x = 1,071,469.68 × 490,064.80
  4. Step 4: Simplify right side
    715,257.76x = 525,089,574,435.26
  5. Step 5: Solve for x
    x = 525,089,574,435.26/715,257.76
  6. Step 6: Final answer
    x = 734,126.36

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Double scale
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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.