Home / 711,291.96-1,067,498.84-312,208.20

Finding the Fourth Proportional to 711,291.96, 1,067,498.84 and 312,208.20

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Solution

The fourth proportional to 711,291.96, 1,067,498.84 and 312,208.20 is: 468,558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,291.96 : 1,067,498.84 = 312,208.20 : x
  2. Step 2: Convert to fraction form
    711,291.96/1,067,498.84 = 312,208.20/x
  3. Step 3: Cross multiply
    711,291.96x = 1,067,498.84 × 312,208.20
  4. Step 4: Simplify right side
    711,291.96x = 333,281,891,338.49
  5. Step 5: Solve for x
    x = 333,281,891,338.49/711,291.96
  6. Step 6: Final answer
    x = 468,558.50

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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.