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Finding the Fourth Proportional to 453,537.80, 680,997.90 and 266,913.80

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Solution

The fourth proportional to 453,537.80, 680,997.90 and 266,913.80 is: 400,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,537.80 : 680,997.90 = 266,913.80 : x
  2. Step 2: Convert to fraction form
    453,537.80/680,997.90 = 266,913.80/x
  3. Step 3: Cross multiply
    453,537.80x = 680,997.90 × 266,913.80
  4. Step 4: Simplify right side
    453,537.80x = 181,767,737,281.02
  5. Step 5: Solve for x
    x = 181,767,737,281.02/453,537.80
  6. Step 6: Final answer
    x = 400,777.48

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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.