Home / 790,057.44-1,090,278.56-445,965.80

Finding the Fourth Proportional to 790,057.44, 1,090,278.56 and 445,965.80

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Solution

The fourth proportional to 790,057.44, 1,090,278.56 and 445,965.80 is: 615,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,057.44 : 1,090,278.56 = 445,965.80 : x
  2. Step 2: Convert to fraction form
    790,057.44/1,090,278.56 = 445,965.80/x
  3. Step 3: Cross multiply
    790,057.44x = 1,090,278.56 × 445,965.80
  4. Step 4: Simplify right side
    790,057.44x = 486,226,945,896.77
  5. Step 5: Solve for x
    x = 486,226,945,896.77/790,057.44
  6. Step 6: Final answer
    x = 615,432.40

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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.