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Finding the Fourth Proportional to 545,855.16, 818,627.22 and 345,873.72

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Solution

The fourth proportional to 545,855.16, 818,627.22 and 345,873.72 is: 518,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,855.16 : 818,627.22 = 345,873.72 : x
  2. Step 2: Convert to fraction form
    545,855.16/818,627.22 = 345,873.72/x
  3. Step 3: Cross multiply
    545,855.16x = 818,627.22 × 345,873.72
  4. Step 4: Simplify right side
    545,855.16x = 283,141,641,874.66
  5. Step 5: Solve for x
    x = 283,141,641,874.66/545,855.16
  6. Step 6: Final answer
    x = 518,712.04

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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.