Home / 689,387.02-1,035,049.34-352,669.20

Finding the Fourth Proportional to 689,387.02, 1,035,049.34 and 352,669.20

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Solution

The fourth proportional to 689,387.02, 1,035,049.34 and 352,669.20 is: 529,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,387.02 : 1,035,049.34 = 352,669.20 : x
  2. Step 2: Convert to fraction form
    689,387.02/1,035,049.34 = 352,669.20/x
  3. Step 3: Cross multiply
    689,387.02x = 1,035,049.34 × 352,669.20
  4. Step 4: Simplify right side
    689,387.02x = 365,030,022,698.33
  5. Step 5: Solve for x
    x = 365,030,022,698.33/689,387.02
  6. Step 6: Final answer
    x = 529,499.41

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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.