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Finding the Fourth Proportional to 863,748.80, 1,294,672.80 and 302,494.40

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Solution

The fourth proportional to 863,748.80, 1,294,672.80 and 302,494.40 is: 453,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,748.80 : 1,294,672.80 = 302,494.40 : x
  2. Step 2: Convert to fraction form
    863,748.80/1,294,672.80 = 302,494.40/x
  3. Step 3: Cross multiply
    863,748.80x = 1,294,672.80 × 302,494.40
  4. Step 4: Simplify right side
    863,748.80x = 391,631,271,832.32
  5. Step 5: Solve for x
    x = 391,631,271,832.32/863,748.80
  6. Step 6: Final answer
    x = 453,408.76

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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.