Home / 1,120,986.32-1,681,432.44-521,741.36

Finding the Fourth Proportional to 1,120,986.32, 1,681,432.44 and 521,741.36

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Solution

The fourth proportional to 1,120,986.32, 1,681,432.44 and 521,741.36 is: 782,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,986.32 : 1,681,432.44 = 521,741.36 : x
  2. Step 2: Convert to fraction form
    1,120,986.32/1,681,432.44 = 521,741.36/x
  3. Step 3: Cross multiply
    1,120,986.32x = 1,681,432.44 × 521,741.36
  4. Step 4: Simplify right side
    1,120,986.32x = 877,272,847,993.72
  5. Step 5: Solve for x
    x = 877,272,847,993.72/1,120,986.32
  6. Step 6: Final answer
    x = 782,590.15

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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.