Home / 539,977.81-809,955.78-140,609.74

Finding the Fourth Proportional to 539,977.81, 809,955.78 and 140,609.74

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Solution

The fourth proportional to 539,977.81, 809,955.78 and 140,609.74 is: 210,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,977.81 : 809,955.78 = 140,609.74 : x
  2. Step 2: Convert to fraction form
    539,977.81/809,955.78 = 140,609.74/x
  3. Step 3: Cross multiply
    539,977.81x = 809,955.78 × 140,609.74
  4. Step 4: Simplify right side
    539,977.81x = 113,887,671,637.30
  5. Step 5: Solve for x
    x = 113,887,671,637.30/539,977.81
  6. Step 6: Final answer
    x = 210,911.76

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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.