Home / 765,813.58-1,056,805.22-479,491.54

Finding the Fourth Proportional to 765,813.58, 1,056,805.22 and 479,491.54

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Solution

The fourth proportional to 765,813.58, 1,056,805.22 and 479,491.54 is: 661,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,813.58 : 1,056,805.22 = 479,491.54 : x
  2. Step 2: Convert to fraction form
    765,813.58/1,056,805.22 = 479,491.54/x
  3. Step 3: Cross multiply
    765,813.58x = 1,056,805.22 × 479,491.54
  4. Step 4: Simplify right side
    765,813.58x = 506,729,162,417.84
  5. Step 5: Solve for x
    x = 506,729,162,417.84/765,813.58
  6. Step 6: Final answer
    x = 661,687.36

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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.