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Finding the Fourth Proportional to 617,908.90, 926,863.35 and 551,424.10

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Solution

The fourth proportional to 617,908.90, 926,863.35 and 551,424.10 is: 827,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,908.90 : 926,863.35 = 551,424.10 : x
  2. Step 2: Convert to fraction form
    617,908.90/926,863.35 = 551,424.10/x
  3. Step 3: Cross multiply
    617,908.90x = 926,863.35 × 551,424.10
  4. Step 4: Simplify right side
    617,908.90x = 511,094,788,596.74
  5. Step 5: Solve for x
    x = 511,094,788,596.74/617,908.90
  6. Step 6: Final answer
    x = 827,136.15

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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.