Home / 786,089.36-1,178,997.12-253,610.34

Finding the Fourth Proportional to 786,089.36, 1,178,997.12 and 253,610.34

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Solution

The fourth proportional to 786,089.36, 1,178,997.12 and 253,610.34 is: 380,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,089.36 : 1,178,997.12 = 253,610.34 : x
  2. Step 2: Convert to fraction form
    786,089.36/1,178,997.12 = 253,610.34/x
  3. Step 3: Cross multiply
    786,089.36x = 1,178,997.12 × 253,610.34
  4. Step 4: Simplify right side
    786,089.36x = 299,005,860,462.22
  5. Step 5: Solve for x
    x = 299,005,860,462.22/786,089.36
  6. Step 6: Final answer
    x = 380,371.34

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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.