Home / 790,449.22-1,090,820.57-427,871.96

Finding the Fourth Proportional to 790,449.22, 1,090,820.57 and 427,871.96

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Solution

The fourth proportional to 790,449.22, 1,090,820.57 and 427,871.96 is: 590,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,449.22 : 1,090,820.57 = 427,871.96 : x
  2. Step 2: Convert to fraction form
    790,449.22/1,090,820.57 = 427,871.96/x
  3. Step 3: Cross multiply
    790,449.22x = 1,090,820.57 × 427,871.96
  4. Step 4: Simplify right side
    790,449.22x = 466,731,527,700.76
  5. Step 5: Solve for x
    x = 466,731,527,700.76/790,449.22
  6. Step 6: Final answer
    x = 590,463.65

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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.