Home / 1,500,231.28-2,069,909.76-855,416.32

Finding the Fourth Proportional to 1,500,231.28, 2,069,909.76 and 855,416.32

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Solution

The fourth proportional to 1,500,231.28, 2,069,909.76 and 855,416.32 is: 1,180,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,231.28 : 2,069,909.76 = 855,416.32 : x
  2. Step 2: Convert to fraction form
    1,500,231.28/2,069,909.76 = 855,416.32/x
  3. Step 3: Cross multiply
    1,500,231.28x = 2,069,909.76 × 855,416.32
  4. Step 4: Simplify right side
    1,500,231.28x = 1,770,634,589,631.28
  5. Step 5: Solve for x
    x = 1,770,634,589,631.28/1,500,231.28
  6. Step 6: Final answer
    x = 1,180,241.08

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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.