Home / 676,918.80-1,015,378.20-171,478.80

Finding the Fourth Proportional to 676,918.80, 1,015,378.20 and 171,478.80

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Solution

The fourth proportional to 676,918.80, 1,015,378.20 and 171,478.80 is: 257,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,918.80 : 1,015,378.20 = 171,478.80 : x
  2. Step 2: Convert to fraction form
    676,918.80/1,015,378.20 = 171,478.80/x
  3. Step 3: Cross multiply
    676,918.80x = 1,015,378.20 × 171,478.80
  4. Step 4: Simplify right side
    676,918.80x = 174,115,835,282.16
  5. Step 5: Solve for x
    x = 174,115,835,282.16/676,918.80
  6. Step 6: Final answer
    x = 257,218.20

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Double scale
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Similar ratio
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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.