Home / 1,124,705.76-1,687,065.12-459,857.76

Finding the Fourth Proportional to 1,124,705.76, 1,687,065.12 and 459,857.76

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Solution

The fourth proportional to 1,124,705.76, 1,687,065.12 and 459,857.76 is: 689,789.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,705.76 : 1,687,065.12 = 459,857.76 : x
  2. Step 2: Convert to fraction form
    1,124,705.76/1,687,065.12 = 459,857.76/x
  3. Step 3: Cross multiply
    1,124,705.76x = 1,687,065.12 × 459,857.76
  4. Step 4: Simplify right side
    1,124,705.76x = 775,809,987,057.33
  5. Step 5: Solve for x
    x = 775,809,987,057.33/1,124,705.76
  6. Step 6: Final answer
    x = 689,789.29

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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.