Home / 1,005,089.01-1,507,855.86-331,143.09

Finding the Fourth Proportional to 1,005,089.01, 1,507,855.86 and 331,143.09

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Solution

The fourth proportional to 1,005,089.01, 1,507,855.86 and 331,143.09 is: 496,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,089.01 : 1,507,855.86 = 331,143.09 : x
  2. Step 2: Convert to fraction form
    1,005,089.01/1,507,855.86 = 331,143.09/x
  3. Step 3: Cross multiply
    1,005,089.01x = 1,507,855.86 × 331,143.09
  4. Step 4: Simplify right side
    1,005,089.01x = 499,316,048,755.01
  5. Step 5: Solve for x
    x = 499,316,048,755.01/1,005,089.01
  6. Step 6: Final answer
    x = 496,787.89

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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.