Home / 766,288.69-1,057,511.19-426,756.94

Finding the Fourth Proportional to 766,288.69, 1,057,511.19 and 426,756.94

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Solution

The fourth proportional to 766,288.69, 1,057,511.19 and 426,756.94 is: 588,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,288.69 : 1,057,511.19 = 426,756.94 : x
  2. Step 2: Convert to fraction form
    766,288.69/1,057,511.19 = 426,756.94/x
  3. Step 3: Cross multiply
    766,288.69x = 1,057,511.19 × 426,756.94
  4. Step 4: Simplify right side
    766,288.69x = 451,300,238,416.72
  5. Step 5: Solve for x
    x = 451,300,238,416.72/766,288.69
  6. Step 6: Final answer
    x = 588,942.84

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Double scale
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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.