Home / 912,601.35-1,368,933.84-313,558.20

Finding the Fourth Proportional to 912,601.35, 1,368,933.84 and 313,558.20

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Solution

The fourth proportional to 912,601.35, 1,368,933.84 and 313,558.20 is: 470,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,601.35 : 1,368,933.84 = 313,558.20 : x
  2. Step 2: Convert to fraction form
    912,601.35/1,368,933.84 = 313,558.20/x
  3. Step 3: Cross multiply
    912,601.35x = 1,368,933.84 × 313,558.20
  4. Step 4: Simplify right side
    912,601.35x = 429,240,430,789.49
  5. Step 5: Solve for x
    x = 429,240,430,789.49/912,601.35
  6. Step 6: Final answer
    x = 470,348.23

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Double scale
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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.