Home / 762,774.75-1,143,719.10-289,201.77

Finding the Fourth Proportional to 762,774.75, 1,143,719.10 and 289,201.77

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Solution

The fourth proportional to 762,774.75, 1,143,719.10 and 289,201.77 is: 433,634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,774.75 : 1,143,719.10 = 289,201.77 : x
  2. Step 2: Convert to fraction form
    762,774.75/1,143,719.10 = 289,201.77/x
  3. Step 3: Cross multiply
    762,774.75x = 1,143,719.10 × 289,201.77
  4. Step 4: Simplify right side
    762,774.75x = 330,765,588,102.81
  5. Step 5: Solve for x
    x = 330,765,588,102.81/762,774.75
  6. Step 6: Final answer
    x = 433,634.68

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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.