Home / 763,086.54-1,143,103.76-459,313.86

Finding the Fourth Proportional to 763,086.54, 1,143,103.76 and 459,313.86

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Solution

The fourth proportional to 763,086.54, 1,143,103.76 and 459,313.86 is: 688,052.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,086.54 : 1,143,103.76 = 459,313.86 : x
  2. Step 2: Convert to fraction form
    763,086.54/1,143,103.76 = 459,313.86/x
  3. Step 3: Cross multiply
    763,086.54x = 1,143,103.76 × 459,313.86
  4. Step 4: Simplify right side
    763,086.54x = 525,043,400,386.11
  5. Step 5: Solve for x
    x = 525,043,400,386.11/763,086.54
  6. Step 6: Final answer
    x = 688,052.24

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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.