Home / 1,539,720.75-2,124,792.45-851,377.45

Finding the Fourth Proportional to 1,539,720.75, 2,124,792.45 and 851,377.45

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Solution

The fourth proportional to 1,539,720.75, 2,124,792.45 and 851,377.45 is: 1,174,888.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,720.75 : 2,124,792.45 = 851,377.45 : x
  2. Step 2: Convert to fraction form
    1,539,720.75/2,124,792.45 = 851,377.45/x
  3. Step 3: Cross multiply
    1,539,720.75x = 2,124,792.45 × 851,377.45
  4. Step 4: Simplify right side
    1,539,720.75x = 1,809,000,372,548.27
  5. Step 5: Solve for x
    x = 1,809,000,372,548.27/1,539,720.75
  6. Step 6: Final answer
    x = 1,174,888.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.