Home / 863,421.80-1,295,132.70-726,564.20

Finding the Fourth Proportional to 863,421.80, 1,295,132.70 and 726,564.20

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Solution

The fourth proportional to 863,421.80, 1,295,132.70 and 726,564.20 is: 1,089,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,421.80 : 1,295,132.70 = 726,564.20 : x
  2. Step 2: Convert to fraction form
    863,421.80/1,295,132.70 = 726,564.20/x
  3. Step 3: Cross multiply
    863,421.80x = 1,295,132.70 × 726,564.20
  4. Step 4: Simplify right side
    863,421.80x = 940,997,054,069.34
  5. Step 5: Solve for x
    x = 940,997,054,069.34/863,421.80
  6. Step 6: Final answer
    x = 1,089,846.30

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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.