Home / 876,651.36-1,315,051.91-307,983.06

Finding the Fourth Proportional to 876,651.36, 1,315,051.91 and 307,983.06

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Solution

The fourth proportional to 876,651.36, 1,315,051.91 and 307,983.06 is: 462,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,651.36 : 1,315,051.91 = 307,983.06 : x
  2. Step 2: Convert to fraction form
    876,651.36/1,315,051.91 = 307,983.06/x
  3. Step 3: Cross multiply
    876,651.36x = 1,315,051.91 × 307,983.06
  4. Step 4: Simplify right side
    876,651.36x = 405,013,710,915.67
  5. Step 5: Solve for x
    x = 405,013,710,915.67/876,651.36
  6. Step 6: Final answer
    x = 462,000.89

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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.