Home / 790,214.46-1,090,498.67-427,638.21

Finding the Fourth Proportional to 790,214.46, 1,090,498.67 and 427,638.21

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Solution

The fourth proportional to 790,214.46, 1,090,498.67 and 427,638.21 is: 590,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,214.46 : 1,090,498.67 = 427,638.21 : x
  2. Step 2: Convert to fraction form
    790,214.46/1,090,498.67 = 427,638.21/x
  3. Step 3: Cross multiply
    790,214.46x = 1,090,498.67 × 427,638.21
  4. Step 4: Simplify right side
    790,214.46x = 466,338,899,246.18
  5. Step 5: Solve for x
    x = 466,338,899,246.18/790,214.46
  6. Step 6: Final answer
    x = 590,142.20

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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.