Home / 808,535.30-1,213,801.35-509,015.30

Finding the Fourth Proportional to 808,535.30, 1,213,801.35 and 509,015.30

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Solution

The fourth proportional to 808,535.30, 1,213,801.35 and 509,015.30 is: 764,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,535.30 : 1,213,801.35 = 509,015.30 : x
  2. Step 2: Convert to fraction form
    808,535.30/1,213,801.35 = 509,015.30/x
  3. Step 3: Cross multiply
    808,535.30x = 1,213,801.35 × 509,015.30
  4. Step 4: Simplify right side
    808,535.30x = 617,843,458,310.66
  5. Step 5: Solve for x
    x = 617,843,458,310.66/808,535.30
  6. Step 6: Final answer
    x = 764,151.50

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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.