Home / 1,455,139.70-2,008,127.86-810,570.14

Finding the Fourth Proportional to 1,455,139.70, 2,008,127.86 and 810,570.14

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Solution

The fourth proportional to 1,455,139.70, 2,008,127.86 and 810,570.14 is: 1,118,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,139.70 : 2,008,127.86 = 810,570.14 : x
  2. Step 2: Convert to fraction form
    1,455,139.70/2,008,127.86 = 810,570.14/x
  3. Step 3: Cross multiply
    1,455,139.70x = 2,008,127.86 × 810,570.14
  4. Step 4: Simplify right side
    1,455,139.70x = 1,627,728,480,618.10
  5. Step 5: Solve for x
    x = 1,627,728,480,618.10/1,455,139.70
  6. Step 6: Final answer
    x = 1,118,606.33

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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.