Home / 1,487,390.82-2,052,621.45-808,327.86

Finding the Fourth Proportional to 1,487,390.82, 2,052,621.45 and 808,327.86

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Solution

The fourth proportional to 1,487,390.82, 2,052,621.45 and 808,327.86 is: 1,115,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,390.82 : 2,052,621.45 = 808,327.86 : x
  2. Step 2: Convert to fraction form
    1,487,390.82/2,052,621.45 = 808,327.86/x
  3. Step 3: Cross multiply
    1,487,390.82x = 2,052,621.45 × 808,327.86
  4. Step 4: Simplify right side
    1,487,390.82x = 1,659,191,104,068.60
  5. Step 5: Solve for x
    x = 1,659,191,104,068.60/1,487,390.82
  6. Step 6: Final answer
    x = 1,115,504.47

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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.