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Finding the Fourth Proportional to 609,576, 913,761.28 and 289,166.08

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Solution

The fourth proportional to 609,576, 913,761.28 and 289,166.08 is: 433,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,576 : 913,761.28 = 289,166.08 : x
  2. Step 2: Convert to fraction form
    609,576/913,761.28 = 289,166.08/x
  3. Step 3: Cross multiply
    609,576x = 913,761.28 × 289,166.08
  4. Step 4: Simplify right side
    609,576x = 264,228,767,393.38
  5. Step 5: Solve for x
    x = 264,228,767,393.38/609,576
  6. Step 6: Final answer
    x = 433,463.21

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1.5x scale

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.