Home / 859,768.88-1,287,675.96-499,046.36

Finding the Fourth Proportional to 859,768.88, 1,287,675.96 and 499,046.36

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Solution

The fourth proportional to 859,768.88, 1,287,675.96 and 499,046.36 is: 747,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,768.88 : 1,287,675.96 = 499,046.36 : x
  2. Step 2: Convert to fraction form
    859,768.88/1,287,675.96 = 499,046.36/x
  3. Step 3: Cross multiply
    859,768.88x = 1,287,675.96 × 499,046.36
  4. Step 4: Simplify right side
    859,768.88x = 642,610,000,697.51
  5. Step 5: Solve for x
    x = 642,610,000,697.51/859,768.88
  6. Step 6: Final answer
    x = 747,421.80

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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.