Home / 872,420.92-1,308,631.90-273,428.76

Finding the Fourth Proportional to 872,420.92, 1,308,631.90 and 273,428.76

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Solution

The fourth proportional to 872,420.92, 1,308,631.90 and 273,428.76 is: 410,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,420.92 : 1,308,631.90 = 273,428.76 : x
  2. Step 2: Convert to fraction form
    872,420.92/1,308,631.90 = 273,428.76/x
  3. Step 3: Cross multiply
    872,420.92x = 1,308,631.90 × 273,428.76
  4. Step 4: Simplify right side
    872,420.92x = 357,817,597,713.44
  5. Step 5: Solve for x
    x = 357,817,597,713.44/872,420.92
  6. Step 6: Final answer
    x = 410,143.30

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1.5x scale

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.