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Finding the Fourth Proportional to 1,208,687.60, 1,813,614.60 and 852,935.60

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Solution

The fourth proportional to 1,208,687.60, 1,813,614.60 and 852,935.60 is: 1,279,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,687.60 : 1,813,614.60 = 852,935.60 : x
  2. Step 2: Convert to fraction form
    1,208,687.60/1,813,614.60 = 852,935.60/x
  3. Step 3: Cross multiply
    1,208,687.60x = 1,813,614.60 × 852,935.60
  4. Step 4: Simplify right side
    1,208,687.60x = 1,546,896,457,019.76
  5. Step 5: Solve for x
    x = 1,546,896,457,019.76/1,208,687.60
  6. Step 6: Final answer
    x = 1,279,814.95

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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.