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Finding the Fourth Proportional to 585,371.05, 877,657.03 and 311,858.15

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Solution

The fourth proportional to 585,371.05, 877,657.03 and 311,858.15 is: 467,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,371.05 : 877,657.03 = 311,858.15 : x
  2. Step 2: Convert to fraction form
    585,371.05/877,657.03 = 311,858.15/x
  3. Step 3: Cross multiply
    585,371.05x = 877,657.03 × 311,858.15
  4. Step 4: Simplify right side
    585,371.05x = 273,704,499,671.95
  5. Step 5: Solve for x
    x = 273,704,499,671.95/585,371.05
  6. Step 6: Final answer
    x = 467,574.37

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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.