Home / 765,382.74-1,056,357.60-443,288.64

Finding the Fourth Proportional to 765,382.74, 1,056,357.60 and 443,288.64

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Solution

The fourth proportional to 765,382.74, 1,056,357.60 and 443,288.64 is: 611,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,382.74 : 1,056,357.60 = 443,288.64 : x
  2. Step 2: Convert to fraction form
    765,382.74/1,056,357.60 = 443,288.64/x
  3. Step 3: Cross multiply
    765,382.74x = 1,056,357.60 × 443,288.64
  4. Step 4: Simplify right side
    765,382.74x = 468,271,323,857.66
  5. Step 5: Solve for x
    x = 468,271,323,857.66/765,382.74
  6. Step 6: Final answer
    x = 611,813.28

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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.