Home / 676,919.80-1,015,379.70-171,479.80

Finding the Fourth Proportional to 676,919.80, 1,015,379.70 and 171,479.80

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Solution

The fourth proportional to 676,919.80, 1,015,379.70 and 171,479.80 is: 257,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,919.80 : 1,015,379.70 = 171,479.80 : x
  2. Step 2: Convert to fraction form
    676,919.80/1,015,379.70 = 171,479.80/x
  3. Step 3: Cross multiply
    676,919.80x = 1,015,379.70 × 171,479.80
  4. Step 4: Simplify right side
    676,919.80x = 174,117,107,880.06
  5. Step 5: Solve for x
    x = 174,117,107,880.06/676,919.80
  6. Step 6: Final answer
    x = 257,219.70

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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.