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Finding the Fourth Proportional to 605,126.60, 905,721.60 and 471,282.20

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Solution

The fourth proportional to 605,126.60, 905,721.60 and 471,282.20 is: 705,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,126.60 : 905,721.60 = 471,282.20 : x
  2. Step 2: Convert to fraction form
    605,126.60/905,721.60 = 471,282.20/x
  3. Step 3: Cross multiply
    605,126.60x = 905,721.60 × 471,282.20
  4. Step 4: Simplify right side
    605,126.60x = 426,850,468,235.52
  5. Step 5: Solve for x
    x = 426,850,468,235.52/605,126.60
  6. Step 6: Final answer
    x = 705,390.36

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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.