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Finding the Fourth Proportional to 666,751.94, 1,000,784.01 and 488,752.01

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Solution

The fourth proportional to 666,751.94, 1,000,784.01 and 488,752.01 is: 733,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,751.94 : 1,000,784.01 = 488,752.01 : x
  2. Step 2: Convert to fraction form
    666,751.94/1,000,784.01 = 488,752.01/x
  3. Step 3: Cross multiply
    666,751.94x = 1,000,784.01 × 488,752.01
  4. Step 4: Simplify right side
    666,751.94x = 489,135,196,463.36
  5. Step 5: Solve for x
    x = 489,135,196,463.36/666,751.94
  6. Step 6: Final answer
    x = 733,608.96

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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.