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Finding the Fourth Proportional to 668,855.88, 1,003,371.30 and 353,325.24

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Solution

The fourth proportional to 668,855.88, 1,003,371.30 and 353,325.24 is: 530,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,855.88 : 1,003,371.30 = 353,325.24 : x
  2. Step 2: Convert to fraction form
    668,855.88/1,003,371.30 = 353,325.24/x
  3. Step 3: Cross multiply
    668,855.88x = 1,003,371.30 × 353,325.24
  4. Step 4: Simplify right side
    668,855.88x = 354,516,405,381.61
  5. Step 5: Solve for x
    x = 354,516,405,381.61/668,855.88
  6. Step 6: Final answer
    x = 530,034.07

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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.