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Finding the Fourth Proportional to 768,269.10, 1,060,270.11 and 424,171.38

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Solution

The fourth proportional to 768,269.10, 1,060,270.11 and 424,171.38 is: 585,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,269.10 : 1,060,270.11 = 424,171.38 : x
  2. Step 2: Convert to fraction form
    768,269.10/1,060,270.11 = 424,171.38/x
  3. Step 3: Cross multiply
    768,269.10x = 1,060,270.11 × 424,171.38
  4. Step 4: Simplify right side
    768,269.10x = 449,736,235,731.45
  5. Step 5: Solve for x
    x = 449,736,235,731.45/768,269.10
  6. Step 6: Final answer
    x = 585,388.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.