Home / 905,021.42-1,357,530.95-231,102.39

Finding the Fourth Proportional to 905,021.42, 1,357,530.95 and 231,102.39

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Solution

The fourth proportional to 905,021.42, 1,357,530.95 and 231,102.39 is: 346,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,021.42 : 1,357,530.95 = 231,102.39 : x
  2. Step 2: Convert to fraction form
    905,021.42/1,357,530.95 = 231,102.39/x
  3. Step 3: Cross multiply
    905,021.42x = 1,357,530.95 × 231,102.39
  4. Step 4: Simplify right side
    905,021.42x = 313,728,645,888.46
  5. Step 5: Solve for x
    x = 313,728,645,888.46/905,021.42
  6. Step 6: Final answer
    x = 346,653.28

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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.