Home / 765,989.01-1,148,736.51-253,558.53

Finding the Fourth Proportional to 765,989.01, 1,148,736.51 and 253,558.53

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Solution

The fourth proportional to 765,989.01, 1,148,736.51 and 253,558.53 is: 380,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,989.01 : 1,148,736.51 = 253,558.53 : x
  2. Step 2: Convert to fraction form
    765,989.01/1,148,736.51 = 253,558.53/x
  3. Step 3: Cross multiply
    765,989.01x = 1,148,736.51 × 253,558.53
  4. Step 4: Simplify right side
    765,989.01x = 291,271,940,832.93
  5. Step 5: Solve for x
    x = 291,271,940,832.93/765,989.01
  6. Step 6: Final answer
    x = 380,256.03

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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.