Home / 1,489,447.17-2,055,437.01-810,388.53

Finding the Fourth Proportional to 1,489,447.17, 2,055,437.01 and 810,388.53

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Solution

The fourth proportional to 1,489,447.17, 2,055,437.01 and 810,388.53 is: 1,118,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,447.17 : 2,055,437.01 = 810,388.53 : x
  2. Step 2: Convert to fraction form
    1,489,447.17/2,055,437.01 = 810,388.53/x
  3. Step 3: Cross multiply
    1,489,447.17x = 2,055,437.01 × 810,388.53
  4. Step 4: Simplify right side
    1,489,447.17x = 1,665,702,577,041.50
  5. Step 5: Solve for x
    x = 1,665,702,577,041.50/1,489,447.17
  6. Step 6: Final answer
    x = 1,118,336.13

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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.