Home / 1,430,867.88-2,144,703.42-620,316.54

Finding the Fourth Proportional to 1,430,867.88, 2,144,703.42 and 620,316.54

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Solution

The fourth proportional to 1,430,867.88, 2,144,703.42 and 620,316.54 is: 929,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,867.88 : 2,144,703.42 = 620,316.54 : x
  2. Step 2: Convert to fraction form
    1,430,867.88/2,144,703.42 = 620,316.54/x
  3. Step 3: Cross multiply
    1,430,867.88x = 2,144,703.42 × 620,316.54
  4. Step 4: Simplify right side
    1,430,867.88x = 1,330,395,004,820.57
  5. Step 5: Solve for x
    x = 1,330,395,004,820.57/1,430,867.88
  6. Step 6: Final answer
    x = 929,781.86

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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.