Home / 694,807.20-1,042,210.80-274,028.40

Finding the Fourth Proportional to 694,807.20, 1,042,210.80 and 274,028.40

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Solution

The fourth proportional to 694,807.20, 1,042,210.80 and 274,028.40 is: 411,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,807.20 : 1,042,210.80 = 274,028.40 : x
  2. Step 2: Convert to fraction form
    694,807.20/1,042,210.80 = 274,028.40/x
  3. Step 3: Cross multiply
    694,807.20x = 1,042,210.80 × 274,028.40
  4. Step 4: Simplify right side
    694,807.20x = 285,595,357,986.72
  5. Step 5: Solve for x
    x = 285,595,357,986.72/694,807.20
  6. Step 6: Final answer
    x = 411,042.60

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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.