Home / 724,785.02-1,086,697.68-345,764.25

Finding the Fourth Proportional to 724,785.02, 1,086,697.68 and 345,764.25

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Solution

The fourth proportional to 724,785.02, 1,086,697.68 and 345,764.25 is: 518,417.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,785.02 : 1,086,697.68 = 345,764.25 : x
  2. Step 2: Convert to fraction form
    724,785.02/1,086,697.68 = 345,764.25/x
  3. Step 3: Cross multiply
    724,785.02x = 1,086,697.68 × 345,764.25
  4. Step 4: Simplify right side
    724,785.02x = 375,741,207,005.32
  5. Step 5: Solve for x
    x = 375,741,207,005.32/724,785.02
  6. Step 6: Final answer
    x = 518,417.46

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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.