Home / 1,489,764.60-2,235,813.30-691,145.10

Finding the Fourth Proportional to 1,489,764.60, 2,235,813.30 and 691,145.10

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Solution

The fourth proportional to 1,489,764.60, 2,235,813.30 and 691,145.10 is: 1,037,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,764.60 : 2,235,813.30 = 691,145.10 : x
  2. Step 2: Convert to fraction form
    1,489,764.60/2,235,813.30 = 691,145.10/x
  3. Step 3: Cross multiply
    1,489,764.60x = 2,235,813.30 × 691,145.10
  4. Step 4: Simplify right side
    1,489,764.60x = 1,545,271,406,809.83
  5. Step 5: Solve for x
    x = 1,545,271,406,809.83/1,489,764.60
  6. Step 6: Final answer
    x = 1,037,258.78

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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.