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Finding the Fourth Proportional to 611,093.66, 843,296.56 and 339,145.76

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Solution

The fourth proportional to 611,093.66, 843,296.56 and 339,145.76 is: 468,014.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,093.66 : 843,296.56 = 339,145.76 : x
  2. Step 2: Convert to fraction form
    611,093.66/843,296.56 = 339,145.76/x
  3. Step 3: Cross multiply
    611,093.66x = 843,296.56 × 339,145.76
  4. Step 4: Simplify right side
    611,093.66x = 286,000,452,746.59
  5. Step 5: Solve for x
    x = 286,000,452,746.59/611,093.66
  6. Step 6: Final answer
    x = 468,014.11

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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.