Home / 452,949.40-679,421.67-115,989.40

Finding the Fourth Proportional to 452,949.40, 679,421.67 and 115,989.40

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Solution

The fourth proportional to 452,949.40, 679,421.67 and 115,989.40 is: 173,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,949.40 : 679,421.67 = 115,989.40 : x
  2. Step 2: Convert to fraction form
    452,949.40/679,421.67 = 115,989.40/x
  3. Step 3: Cross multiply
    452,949.40x = 679,421.67 × 115,989.40
  4. Step 4: Simplify right side
    452,949.40x = 78,805,711,850.30
  5. Step 5: Solve for x
    x = 78,805,711,850.30/452,949.40
  6. Step 6: Final answer
    x = 173,983.48

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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.