Home / 1,124,498.75-1,686,749.75-459,650.75

Finding the Fourth Proportional to 1,124,498.75, 1,686,749.75 and 459,650.75

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Solution

The fourth proportional to 1,124,498.75, 1,686,749.75 and 459,650.75 is: 689,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,498.75 : 1,686,749.75 = 459,650.75 : x
  2. Step 2: Convert to fraction form
    1,124,498.75/1,686,749.75 = 459,650.75/x
  3. Step 3: Cross multiply
    1,124,498.75x = 1,686,749.75 × 459,650.75
  4. Step 4: Simplify right side
    1,124,498.75x = 775,315,787,649.81
  5. Step 5: Solve for x
    x = 775,315,787,649.81/1,124,498.75
  6. Step 6: Final answer
    x = 689,476.79

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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.