Home / 1,605,742.47-2,215,720.94-880,399.32

Finding the Fourth Proportional to 1,605,742.47, 2,215,720.94 and 880,399.32

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Solution

The fourth proportional to 1,605,742.47, 2,215,720.94 and 880,399.32 is: 1,214,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,742.47 : 2,215,720.94 = 880,399.32 : x
  2. Step 2: Convert to fraction form
    1,605,742.47/2,215,720.94 = 880,399.32/x
  3. Step 3: Cross multiply
    1,605,742.47x = 2,215,720.94 × 880,399.32
  4. Step 4: Simplify right side
    1,605,742.47x = 1,950,719,197,807.16
  5. Step 5: Solve for x
    x = 1,950,719,197,807.16/1,605,742.47
  6. Step 6: Final answer
    x = 1,214,839.39

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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.