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Finding the Fourth Proportional to 551,915.70, 827,217.45 and 495,491.10

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Solution

The fourth proportional to 551,915.70, 827,217.45 and 495,491.10 is: 742,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,915.70 : 827,217.45 = 495,491.10 : x
  2. Step 2: Convert to fraction form
    551,915.70/827,217.45 = 495,491.10/x
  3. Step 3: Cross multiply
    551,915.70x = 827,217.45 × 495,491.10
  4. Step 4: Simplify right side
    551,915.70x = 409,878,884,239.70
  5. Step 5: Solve for x
    x = 409,878,884,239.70/551,915.70
  6. Step 6: Final answer
    x = 742,647.63

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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.