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Finding the Fourth Proportional to 551,491.10, 770,512.90 and 551,491.10

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Solution

The fourth proportional to 551,491.10, 770,512.90 and 551,491.10 is: 770,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,491.10 : 770,512.90 = 551,491.10 : x
  2. Step 2: Convert to fraction form
    551,491.10/770,512.90 = 551,491.10/x
  3. Step 3: Cross multiply
    551,491.10x = 770,512.90 × 551,491.10
  4. Step 4: Simplify right side
    551,491.10x = 424,931,006,785.19
  5. Step 5: Solve for x
    x = 424,931,006,785.19/551,491.10
  6. Step 6: Final answer
    x = 770,512.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.