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Finding the Fourth Proportional to 872,600.95, 1,308,898.99 and 273,564.64

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Solution

The fourth proportional to 872,600.95, 1,308,898.99 and 273,564.64 is: 410,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,600.95 : 1,308,898.99 = 273,564.64 : x
  2. Step 2: Convert to fraction form
    872,600.95/1,308,898.99 = 273,564.64/x
  3. Step 3: Cross multiply
    872,600.95x = 1,308,898.99 × 273,564.64
  4. Step 4: Simplify right side
    872,600.95x = 358,068,480,995.71
  5. Step 5: Solve for x
    x = 358,068,480,995.71/872,600.95
  6. Step 6: Final answer
    x = 410,346.20

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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.