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Finding the Fourth Proportional to 804,586.80, 1,205,497.80 and 424,945.20

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Solution

The fourth proportional to 804,586.80, 1,205,497.80 and 424,945.20 is: 636,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,586.80 : 1,205,497.80 = 424,945.20 : x
  2. Step 2: Convert to fraction form
    804,586.80/1,205,497.80 = 424,945.20/x
  3. Step 3: Cross multiply
    804,586.80x = 1,205,497.80 × 424,945.20
  4. Step 4: Simplify right side
    804,586.80x = 512,270,503,720.56
  5. Step 5: Solve for x
    x = 512,270,503,720.56/804,586.80
  6. Step 6: Final answer
    x = 636,687.68

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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.