Home / 804,958.70-1,207,438.05-431,710.70

Finding the Fourth Proportional to 804,958.70, 1,207,438.05 and 431,710.70

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Solution

The fourth proportional to 804,958.70, 1,207,438.05 and 431,710.70 is: 647,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,958.70 : 1,207,438.05 = 431,710.70 : x
  2. Step 2: Convert to fraction form
    804,958.70/1,207,438.05 = 431,710.70/x
  3. Step 3: Cross multiply
    804,958.70x = 1,207,438.05 × 431,710.70
  4. Step 4: Simplify right side
    804,958.70x = 521,263,925,772.14
  5. Step 5: Solve for x
    x = 521,263,925,772.14/804,958.70
  6. Step 6: Final answer
    x = 647,566.05

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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.