Home / 711,636.70-1,067,455.05-291,214.30

Finding the Fourth Proportional to 711,636.70, 1,067,455.05 and 291,214.30

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Solution

The fourth proportional to 711,636.70, 1,067,455.05 and 291,214.30 is: 436,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,636.70 : 1,067,455.05 = 291,214.30 : x
  2. Step 2: Convert to fraction form
    711,636.70/1,067,455.05 = 291,214.30/x
  3. Step 3: Cross multiply
    711,636.70x = 1,067,455.05 × 291,214.30
  4. Step 4: Simplify right side
    711,636.70x = 310,858,175,167.22
  5. Step 5: Solve for x
    x = 310,858,175,167.22/711,636.70
  6. Step 6: Final answer
    x = 436,821.45

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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.