Home / 1,028,811.96-1,543,218.12-429,446.16

Finding the Fourth Proportional to 1,028,811.96, 1,543,218.12 and 429,446.16

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Solution

The fourth proportional to 1,028,811.96, 1,543,218.12 and 429,446.16 is: 644,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,811.96 : 1,543,218.12 = 429,446.16 : x
  2. Step 2: Convert to fraction form
    1,028,811.96/1,543,218.12 = 429,446.16/x
  3. Step 3: Cross multiply
    1,028,811.96x = 1,543,218.12 × 429,446.16
  4. Step 4: Simplify right side
    1,028,811.96x = 662,729,095,676.42
  5. Step 5: Solve for x
    x = 662,729,095,676.42/1,028,811.96
  6. Step 6: Final answer
    x = 644,169.32

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Double scale
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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.