Home / 1,635,375.40-2,452,188.30-687,675.40

Finding the Fourth Proportional to 1,635,375.40, 2,452,188.30 and 687,675.40

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Solution

The fourth proportional to 1,635,375.40, 2,452,188.30 and 687,675.40 is: 1,031,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635,375.40 : 2,452,188.30 = 687,675.40 : x
  2. Step 2: Convert to fraction form
    1,635,375.40/2,452,188.30 = 687,675.40/x
  3. Step 3: Cross multiply
    1,635,375.40x = 2,452,188.30 × 687,675.40
  4. Step 4: Simplify right side
    1,635,375.40x = 1,686,309,570,077.82
  5. Step 5: Solve for x
    x = 1,686,309,570,077.82/1,635,375.40
  6. Step 6: Final answer
    x = 1,031,145.25

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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.