Home / 1,455,071.42-2,008,060.52-810,491.90

Finding the Fourth Proportional to 1,455,071.42, 2,008,060.52 and 810,491.90

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Solution

The fourth proportional to 1,455,071.42, 2,008,060.52 and 810,491.90 is: 1,118,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,071.42 : 2,008,060.52 = 810,491.90 : x
  2. Step 2: Convert to fraction form
    1,455,071.42/2,008,060.52 = 810,491.90/x
  3. Step 3: Cross multiply
    1,455,071.42x = 2,008,060.52 × 810,491.90
  4. Step 4: Simplify right side
    1,455,071.42x = 1,627,516,786,169.79
  5. Step 5: Solve for x
    x = 1,627,516,786,169.79/1,455,071.42
  6. Step 6: Final answer
    x = 1,118,513.33

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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.