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Finding the Fourth Proportional to 609.26, 907.36 and 572

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Solution

The fourth proportional to 609.26, 907.36 and 572 is: 851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.26 : 907.36 = 572 : x
  2. Step 2: Convert to fraction form
    609.26/907.36 = 572/x
  3. Step 3: Cross multiply
    609.26x = 907.36 × 572
  4. Step 4: Simplify right side
    609.26x = 519,009.92
  5. Step 5: Solve for x
    x = 519,009.92/609.26
  6. Step 6: Final answer
    x = 851.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.