Home / 485,572.41-670,513.04-304,595.43

Finding the Fourth Proportional to 485,572.41, 670,513.04 and 304,595.43

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Solution

The fourth proportional to 485,572.41, 670,513.04 and 304,595.43 is: 420,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,572.41 : 670,513.04 = 304,595.43 : x
  2. Step 2: Convert to fraction form
    485,572.41/670,513.04 = 304,595.43/x
  3. Step 3: Cross multiply
    485,572.41x = 670,513.04 × 304,595.43
  4. Step 4: Simplify right side
    485,572.41x = 204,235,202,863.87
  5. Step 5: Solve for x
    x = 204,235,202,863.87/485,572.41
  6. Step 6: Final answer
    x = 420,607.10

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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.