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Finding the Fourth Proportional to 988,800.60, 1,364,571.70 and 559,145

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Solution

The fourth proportional to 988,800.60, 1,364,571.70 and 559,145 is: 771,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,800.60 : 1,364,571.70 = 559,145 : x
  2. Step 2: Convert to fraction form
    988,800.60/1,364,571.70 = 559,145/x
  3. Step 3: Cross multiply
    988,800.60x = 1,364,571.70 × 559,145
  4. Step 4: Simplify right side
    988,800.60x = 762,993,443,196.50
  5. Step 5: Solve for x
    x = 762,993,443,196.50/988,800.60
  6. Step 6: Final answer
    x = 771,635.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.