Home / 853,917.96-1,281,320.01-380,493.21

Finding the Fourth Proportional to 853,917.96, 1,281,320.01 and 380,493.21

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Solution

The fourth proportional to 853,917.96, 1,281,320.01 and 380,493.21 is: 570,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,917.96 : 1,281,320.01 = 380,493.21 : x
  2. Step 2: Convert to fraction form
    853,917.96/1,281,320.01 = 380,493.21/x
  3. Step 3: Cross multiply
    853,917.96x = 1,281,320.01 × 380,493.21
  4. Step 4: Simplify right side
    853,917.96x = 487,533,563,642.13
  5. Step 5: Solve for x
    x = 487,533,563,642.13/853,917.96
  6. Step 6: Final answer
    x = 570,937.24

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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.