Home / 452,921.40-679,379.67-115,961.40

Finding the Fourth Proportional to 452,921.40, 679,379.67 and 115,961.40

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Solution

The fourth proportional to 452,921.40, 679,379.67 and 115,961.40 is: 173,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,921.40 : 679,379.67 = 115,961.40 : x
  2. Step 2: Convert to fraction form
    452,921.40/679,379.67 = 115,961.40/x
  3. Step 3: Cross multiply
    452,921.40x = 679,379.67 × 115,961.40
  4. Step 4: Simplify right side
    452,921.40x = 78,781,817,664.74
  5. Step 5: Solve for x
    x = 78,781,817,664.74/452,921.40
  6. Step 6: Final answer
    x = 173,941.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.