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Finding the Fourth Proportional to 617,940.10, 926,132.55 and 547,956.10

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Solution

The fourth proportional to 617,940.10, 926,132.55 and 547,956.10 is: 821,244.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,940.10 : 926,132.55 = 547,956.10 : x
  2. Step 2: Convert to fraction form
    617,940.10/926,132.55 = 547,956.10/x
  3. Step 3: Cross multiply
    617,940.10x = 926,132.55 × 547,956.10
  4. Step 4: Simplify right side
    617,940.10x = 507,479,980,181.06
  5. Step 5: Solve for x
    x = 507,479,980,181.06/617,940.10
  6. Step 6: Final answer
    x = 821,244.62

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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.