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Finding the Fourth Proportional to 488,064.64, 730,904.64 and 300,818.56

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Solution

The fourth proportional to 488,064.64, 730,904.64 and 300,818.56 is: 450,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,064.64 : 730,904.64 = 300,818.56 : x
  2. Step 2: Convert to fraction form
    488,064.64/730,904.64 = 300,818.56/x
  3. Step 3: Cross multiply
    488,064.64x = 730,904.64 × 300,818.56
  4. Step 4: Simplify right side
    488,064.64x = 219,869,681,302.12
  5. Step 5: Solve for x
    x = 219,869,681,302.12/488,064.64
  6. Step 6: Final answer
    x = 450,492.95

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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.