Home / 756,000.30-1,134,000.45-457,401.90

Finding the Fourth Proportional to 756,000.30, 1,134,000.45 and 457,401.90

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Solution

The fourth proportional to 756,000.30, 1,134,000.45 and 457,401.90 is: 686,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,000.30 : 1,134,000.45 = 457,401.90 : x
  2. Step 2: Convert to fraction form
    756,000.30/1,134,000.45 = 457,401.90/x
  3. Step 3: Cross multiply
    756,000.30x = 1,134,000.45 × 457,401.90
  4. Step 4: Simplify right side
    756,000.30x = 518,693,960,430.86
  5. Step 5: Solve for x
    x = 518,693,960,430.86/756,000.30
  6. Step 6: Final answer
    x = 686,102.85

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