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Finding the Fourth Proportional to 612,311.91, 845,402.73 and 547,580.34

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Solution

The fourth proportional to 612,311.91, 845,402.73 and 547,580.34 is: 756,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,311.91 : 845,402.73 = 547,580.34 : x
  2. Step 2: Convert to fraction form
    612,311.91/845,402.73 = 547,580.34/x
  3. Step 3: Cross multiply
    612,311.91x = 845,402.73 × 547,580.34
  4. Step 4: Simplify right side
    612,311.91x = 462,925,914,330.33
  5. Step 5: Solve for x
    x = 462,925,914,330.33/612,311.91
  6. Step 6: Final answer
    x = 756,029.58

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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.