Home / 872,421.92-1,308,633.40-273,429.76

Finding the Fourth Proportional to 872,421.92, 1,308,633.40 and 273,429.76

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Solution

The fourth proportional to 872,421.92, 1,308,633.40 and 273,429.76 is: 410,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,421.92 : 1,308,633.40 = 273,429.76 : x
  2. Step 2: Convert to fraction form
    872,421.92/1,308,633.40 = 273,429.76/x
  3. Step 3: Cross multiply
    872,421.92x = 1,308,633.40 × 273,429.76
  4. Step 4: Simplify right side
    872,421.92x = 357,819,316,489.98
  5. Step 5: Solve for x
    x = 357,819,316,489.98/872,421.92
  6. Step 6: Final answer
    x = 410,144.80

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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.