Home / 724,685.10-1,086,699.60-275,256.60

Finding the Fourth Proportional to 724,685.10, 1,086,699.60 and 275,256.60

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Solution

The fourth proportional to 724,685.10, 1,086,699.60 and 275,256.60 is: 412,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,685.10 : 1,086,699.60 = 275,256.60 : x
  2. Step 2: Convert to fraction form
    724,685.10/1,086,699.60 = 275,256.60/x
  3. Step 3: Cross multiply
    724,685.10x = 1,086,699.60 × 275,256.60
  4. Step 4: Simplify right side
    724,685.10x = 299,121,237,117.36
  5. Step 5: Solve for x
    x = 299,121,237,117.36/724,685.10
  6. Step 6: Final answer
    x = 412,760.30

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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.