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Finding the Fourth Proportional to 578,445.94, 868,000.99 and 451,730.55

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Solution

The fourth proportional to 578,445.94, 868,000.99 and 451,730.55 is: 677,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,445.94 : 868,000.99 = 451,730.55 : x
  2. Step 2: Convert to fraction form
    578,445.94/868,000.99 = 451,730.55/x
  3. Step 3: Cross multiply
    578,445.94x = 868,000.99 × 451,730.55
  4. Step 4: Simplify right side
    578,445.94x = 392,102,562,354.59
  5. Step 5: Solve for x
    x = 392,102,562,354.59/578,445.94
  6. Step 6: Final answer
    x = 677,855.16

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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.