Home / 1,022,406.76-1,533,613.78-312,431.84

Finding the Fourth Proportional to 1,022,406.76, 1,533,613.78 and 312,431.84

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Solution

The fourth proportional to 1,022,406.76, 1,533,613.78 and 312,431.84 is: 468,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,406.76 : 1,533,613.78 = 312,431.84 : x
  2. Step 2: Convert to fraction form
    1,022,406.76/1,533,613.78 = 312,431.84/x
  3. Step 3: Cross multiply
    1,022,406.76x = 1,533,613.78 × 312,431.84
  4. Step 4: Simplify right side
    1,022,406.76x = 479,149,767,857.23
  5. Step 5: Solve for x
    x = 479,149,767,857.23/1,022,406.76
  6. Step 6: Final answer
    x = 468,648.87

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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.