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Finding the Fourth Proportional to 766,036, 1,057,136.97 and 426,511.54

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Solution

The fourth proportional to 766,036, 1,057,136.97 and 426,511.54 is: 588,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,036 : 1,057,136.97 = 426,511.54 : x
  2. Step 2: Convert to fraction form
    766,036/1,057,136.97 = 426,511.54/x
  3. Step 3: Cross multiply
    766,036x = 1,057,136.97 × 426,511.54
  4. Step 4: Simplify right side
    766,036x = 450,881,117,065.63
  5. Step 5: Solve for x
    x = 450,881,117,065.63/766,036
  6. Step 6: Final answer
    x = 588,589.98

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1.5x scale

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.