Home / 1,128,518.10-1,690,808.76-940,188.24

Finding the Fourth Proportional to 1,128,518.10, 1,690,808.76 and 940,188.24

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Solution

The fourth proportional to 1,128,518.10, 1,690,808.76 and 940,188.24 is: 1,408,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,518.10 : 1,690,808.76 = 940,188.24 : x
  2. Step 2: Convert to fraction form
    1,128,518.10/1,690,808.76 = 940,188.24/x
  3. Step 3: Cross multiply
    1,128,518.10x = 1,690,808.76 × 940,188.24
  4. Step 4: Simplify right side
    1,128,518.10x = 1,589,678,512,240.98
  5. Step 5: Solve for x
    x = 1,589,678,512,240.98/1,128,518.10
  6. Step 6: Final answer
    x = 1,408,642.46

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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.