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Finding the Fourth Proportional to 768,285.88, 1,060,206.73 and 424,114.42

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Solution

The fourth proportional to 768,285.88, 1,060,206.73 and 424,114.42 is: 585,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,285.88 : 1,060,206.73 = 424,114.42 : x
  2. Step 2: Convert to fraction form
    768,285.88/1,060,206.73 = 424,114.42/x
  3. Step 3: Cross multiply
    768,285.88x = 1,060,206.73 × 424,114.42
  4. Step 4: Simplify right side
    768,285.88x = 449,648,966,813.67
  5. Step 5: Solve for x
    x = 449,648,966,813.67/768,285.88
  6. Step 6: Final answer
    x = 585,262.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.