Home / 987,528.87-1,362,789.84-534,819.87

Finding the Fourth Proportional to 987,528.87, 1,362,789.84 and 534,819.87

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Solution

The fourth proportional to 987,528.87, 1,362,789.84 and 534,819.87 is: 738,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,528.87 : 1,362,789.84 = 534,819.87 : x
  2. Step 2: Convert to fraction form
    987,528.87/1,362,789.84 = 534,819.87/x
  3. Step 3: Cross multiply
    987,528.87x = 1,362,789.84 × 534,819.87
  4. Step 4: Simplify right side
    987,528.87x = 728,847,080,230.49
  5. Step 5: Solve for x
    x = 728,847,080,230.49/987,528.87
  6. Step 6: Final answer
    x = 738,051.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.