Home / 905,046.87-1,357,569.10-231,128.65

Finding the Fourth Proportional to 905,046.87, 1,357,569.10 and 231,128.65

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Solution

The fourth proportional to 905,046.87, 1,357,569.10 and 231,128.65 is: 346,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,046.87 : 1,357,569.10 = 231,128.65 : x
  2. Step 2: Convert to fraction form
    905,046.87/1,357,569.10 = 231,128.65/x
  3. Step 3: Cross multiply
    905,046.87x = 1,357,569.10 × 231,128.65
  4. Step 4: Simplify right side
    905,046.87x = 313,773,113,364.72
  5. Step 5: Solve for x
    x = 313,773,113,364.72/905,046.87
  6. Step 6: Final answer
    x = 346,692.67

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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.