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Finding the Fourth Proportional to 612,716.34, 917,499.85 and 375,339.36

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Solution

The fourth proportional to 612,716.34, 917,499.85 and 375,339.36 is: 562,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,716.34 : 917,499.85 = 375,339.36 : x
  2. Step 2: Convert to fraction form
    612,716.34/917,499.85 = 375,339.36/x
  3. Step 3: Cross multiply
    612,716.34x = 917,499.85 × 375,339.36
  4. Step 4: Simplify right side
    612,716.34x = 344,373,806,499.10
  5. Step 5: Solve for x
    x = 344,373,806,499.10/612,716.34
  6. Step 6: Final answer
    x = 562,044.43

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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.