Home / 676,943.80-1,015,415.70-361,238.20

Finding the Fourth Proportional to 676,943.80, 1,015,415.70 and 361,238.20

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Solution

The fourth proportional to 676,943.80, 1,015,415.70 and 361,238.20 is: 541,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,943.80 : 1,015,415.70 = 361,238.20 : x
  2. Step 2: Convert to fraction form
    676,943.80/1,015,415.70 = 361,238.20/x
  3. Step 3: Cross multiply
    676,943.80x = 1,015,415.70 × 361,238.20
  4. Step 4: Simplify right side
    676,943.80x = 366,806,939,719.74
  5. Step 5: Solve for x
    x = 366,806,939,719.74/676,943.80
  6. Step 6: Final answer
    x = 541,857.30

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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.