Home / 1,492,051.05-2,238,738.12-781,910.28

Finding the Fourth Proportional to 1,492,051.05, 2,238,738.12 and 781,910.28

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Solution

The fourth proportional to 1,492,051.05, 2,238,738.12 and 781,910.28 is: 1,173,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,051.05 : 2,238,738.12 = 781,910.28 : x
  2. Step 2: Convert to fraction form
    1,492,051.05/2,238,738.12 = 781,910.28/x
  3. Step 3: Cross multiply
    1,492,051.05x = 2,238,738.12 × 781,910.28
  4. Step 4: Simplify right side
    1,492,051.05x = 1,750,492,350,255.87
  5. Step 5: Solve for x
    x = 1,750,492,350,255.87/1,492,051.05
  6. Step 6: Final answer
    x = 1,173,212.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.